(no entry for this year)

After having secured much of what today is central and northern Peru, the Inca have expanded their empire into Ecuador. With a new king, Tupac Inca, they begin to expand southward into Chile, Bolivia and Argentina.

Painting by Piero della Francesca: The Brera Madonna, (also known as the Pala di Brera, the Montefeltro Altarpiece or Brera Altarpiece), executed in 1472–1474. It is housed in the Pinacoteca di Brera of Milan, where it was deposited by Napoleon. The work, of a type known as a sacra conversazione, was commissioned by Federico III da Montefeltro, Duke of Urbino, to celebrate the birth of Federico's son, Guidobaldo. According to other sources, it would celebrate his conquest of several castles in the Maremma.

(no entry for this year)

Painting by Andrea del Verrocchio and Leonardo da Vinci: The Baptism of Christ, an oil-on-panel painting finished around 1475 in the studio of the Italian Renaissance painter Andrea del Verrocchio and generally ascribed to him and his pupil Leonardo da Vinci. Some art historians discern the hands of other members of Verrocchio's workshop in the painting as well. The picture depicts the Baptism of Jesus by John the Baptist as recorded in the Biblical Gospels of Matthew, Mark and Luke. The angel to the left is recorded as having been painted by the youthful Leonardo, a fact which has excited so much special comment and mythology, that the importance and value of the picture as a whole and within the oeuvre of Verrocchio is often overlooked. Modern critics also attribute much of the landscape in the background to Leonardo as well. The painting is housed in the Uffizi Gallery in Florence.

Painting by Leonardo da Vinci: The Annunciation, painted c. 1472–1476. This is Leonardo's earliest extant major work, completed in Florence while he was an apprentice in the studio of Andrea del Verrocchio. The painting was made using oil and tempera on a large poplar panel and depicts the Annunciation, a popular biblical subject in 15th-century Florence. Since 1867 it has been housed in the Uffizi in Florence, the city where it was created. Though the work has been criticized for inaccuracies in its composition, it is among the best-known portrayals of the Annunciation in Christian art.

English printer William Caxton produces the first book ever printed in the English language — Recuyell of the Historyes of Troye or Recueil des Histoires de Troye, a translation by William Caxton of a French courtly romance written by Raoul Lefèvre, chaplain to Philip III, Duke of Burgundy. Recuyell (recueil in Modern French) simply means "collection" in English. Hence, the work in Modern English would read "A Collection of the Histories of Troy". Caxton's translations and sometimes his titles incorporated words from other European languages. Caxton, probably with the assistance of Colard Mansion and Johann Veldener, printed his translation in 1473 or 1474 (traditionally "ca. 1475") in Bruges. Just 18 copies still exist, and when the Duke of Northumberland sold one in 2014, it fetched more than £1 million.

Painting by Antonio and Piero del Pollaiuolo: Martyrdom of Saint Sebastian, a large altarpiece by the brothers Antonio and Piero del Pollaiuolo, commissioned by the Florentine Pucci family and now in the National Gallery, London. The painting is considered Antonio's masterpiece, with a more rigid geometric control on the composition than in his previous works, without giving up his usual naturalness of poses and movement — the four archers in the foreground form two symmetrical poses, with the two central ones reloading and the two on the edges firing, in perfect equilibrium either side of the central post to which Sebastian is tied.

Painting by Leonardo da Vinci: Ginevra de' Benci, a portrait painting of the 15th-century Florentine aristocrat Ginevra de' Benci (born c. 1458). It was acquired by the National Gallery of Art in Washington, D.C. US from Franz Joseph II, Prince of Liechtenstein in February 1967 for a record price for a painting of between $5 and $6 million. It is the only painting by Leonardo on public view in the Americas. Ginevra de' Benci, a well-known young Florentine woman, is universally considered to be the portrait's sitter. Leonardo painted the portrait in Florence between 1474 and 1478, possibly to commemorate Ginevra's marriage to Luigi di Bernardo Niccolini at the age of 16. More likely, it commemorates the engagement. The juniper bush that surrounds Ginevra's head and fills much of the background, serves more than mere decorative purposes. In Renaissance Italy, the juniper was regarded a symbol of female virtue, while the Italian word for juniper, ginepro, also makes a play on Ginevra's name.

Painting by Hugo van der Goes: Portinari Altarpiece, an oil-on-wood triptych painting, commissioned by Tommaso Portinari, representing the Adoration of the Shepherds. It measures 253 × 304 cm, and is now in the Galleria degli Uffizi in Florence, Italy. This altarpiece is filled with figures and religious symbols. Of all the late-fifteenth-century Flemish artworks, this painting is said to be the most studied. The work was commissioned for the church inside of one of the largest hospitals in Florence, hospital of Santa Maria Nuova by the Italian banker Tommaso Portinari, a descendant of the hospital's founder. Portinari lived for more than forty years in Bruges as a representative for the Medici family's bank. Portinari himself is depicted on the left panel with his two sons Antonio and Pigello; his wife Maria di Francesco Baroncelli is shown on the right panel with their daughter Margarita. All, except Pigello, are accompanied by their patron saints: Saint Thomas (with the spear), Saint Anthony (with the bell), Mary Magdalen (with the pot of ointment) and Saint Margaret (with the book and the dragon). When the work arrived in Florence in 1483, it was installed in the Portinari family chapel where it was deeply admired by the Italian artists who saw it, many of whom sought to emulate it. The Altarpiece is considered to have some of the most complicated and hidden symbolism in any Nativity scene from the fifteenth century. The scenes of the Nativity and the Adoration of the Shepherds are seen in the central panels of the triptych, whereas in the background to the right side, is the scene of the Annunciation of the Shepherds.

(no entry for this year)

A conspiracy, that includes the Archbishop of Pisa and has the support of Pope Sixtus IV, leads to an attack on the Medici while they are in church. The Archbishop and several others are hanged. Pope Sixtus puts Florence under the interdict and excommunicates the Medici leader of Florence, Lorenzo de Medici. The pope forms a military alliance with the King of Naples, and Lorenzo's diplomacy prevents an attack.

Painting by Leonardo da Vinci: The Madonna of the Carnation, also known as the Madonna with Vase, Madonna with Child or Virgin with Flower, is an oil painting created around 1478–1480. It is permanently displayed at the Alte Pinakothek gallery in Munich, Germany. The central and centered motif is the young Virgin Mary seated with Baby Jesus on her lap. Depicted in sumptuous clothes and jewellery, with her left hand Mary holds a carnation (red, suggesting blood and the Passion). The faces are put into light while all other objects are darker, e.g. the flower is covered by a shadow. The child is looking up and the mother looking down, with no eye contact. The setting of the portrait is a room with two windows on each side of the figures. Originally this painting was thought to have been created by Andrea del Verrocchio, but subsequent art historians agree that it is Leonardo's work, probably made during his apprenticeship to Verrocchio. The Virgin's hair, left hand, the drapery, and flowers are similar to elements of Leonardo's Annunciation.

Painting by Leonardo da Vinci: The Benois Madonna, otherwise known as the Madonna and Child with Flowers, is a painting now in the Hermitage Museum, Saint Petersburg. One of two Madonnas begun by Leonardo in October 1478, it was completed c. 1478–1480; the other was the Madonna of the Carnation, now in the Alte Pinakothek, Munich. It is likely that the Benois Madonna was the first work painted by Leonardo independently from his master Andrea del Verrocchio. Two of Leonardo's preliminary sketches for this work are in the British Museum, although the painting was probably overpainted by other hands. The preliminary sketches and the painting itself suggest that Leonardo was concentrating on the idea of sight and perspective. The child is thought to be guiding his mother's hands into his central vision.

Painting by Sandro Botticelli: Primavera, a large panel painting made in the late 1470s or early 1480s (datings vary). It has been described as "one of the most written about, and most controversial paintings in the world", and also "one of the most popular paintings in Western art". The painting depicts a group of figures from classical mythology in a garden, but no story has been found that brings this particular group together. Most critics agree that the painting is an allegory based on the lush growth of Spring, but accounts of any precise meaning vary, though many involve the Renaissance Neoplatonism which then fascinated intellectual circles in Florence. The subject was first described as Primavera by the art historian Giorgio Vasari who saw it at Villa Castello, just outside Florence, by 1550. Although the two are now known not to be a pair, the painting is inevitably discussed with Botticelli's other very large mythological painting, The Birth of Venus, also in the Uffizi. They are among the most famous paintings in the world, and icons of the Italian Renaissance; of the two, the Birth is even better known than the Primavera. As depictions of subjects from classical mythology on a very large scale, they were virtually unprecedented in Western art since classical antiquity.

Painting by Sandro Botticelli: The Resurrected Christ. This painting is considered a defining masterpiece of Botticelli's later works. While the artist is known for his beautiful Madonnas and large allegorical paintings such as 'The Birth of Venus,' after political upheavals in the 1490s, his work became more somber. Here, Christ's head is surrounded by a halo of angels 'en grisaille' — in grey monotone. They hold 'Arma Christi,' the symbols of Christ's death and suffering while Christ himself is both sorrowful and serene.

Ferdinand and Isabella of Spain employ the Spanish Inquisition to investigate whether converted Jews are secretly clinging to Judaism.

Painting by Piero di Cosimo: Madonna and Child Enthroned with Sts. Peter, John the Baptist, Dominic, and Nicholas of Bari. In a lifelike rendering, this large panel portrays a sacra conversazione (holy conversation) where saints surround the Madonna and Child in a unified pictorial space. Piero di Cosimo's approach is far removed from the compartmentalized divisions in Lorenzo di Nicolo's altarpiece elsewhere in this gallery. Here, Saint Peter presents the kneeling Saint Dominic (left) while Saint John the Baptist announces Christ's ministry, and Saint Nicholas kneels in devotion (right). The three smaller panels, called a predella, depict scenes from the lives of Saints Dominic, John, and Nicholas. The Pugliese coat of arms adorns the frame, identifying the Florentine family who commissioned the work for its private chapel.

Painting by Sandro Botticelli: Madonna of the Book, a small painting preserved in the Poldi Pezzoli Museum in Milan. The painting is executed in tempera on panel. It dates from between 1480 and 1481. The Madonna of the Book is a soft and elegant work, in which Mary and the Child Jesus are seated by a window in the corner of a room. She holds a Book of Hours, the Horae Beatae Mariae Virginis, prayer books for laymen common in the thirteenth to sixteenth centuries. The infant is gazing at his mother whilst she is absorbed in reading the book. The hands of both mother and son are positioned similarly, with the right hands open as in a gesture of blessing, and left hands closed. Symbolizing the Passion of Jesus, the Christ Child is holding the three nails of the cross, and the crown of thorns. These are probably later additions, added to make the message more explicit.

Painting by Hans Memling: The Annunciation, an oil painting depicting the archangel Gabriel's announcement to the Virgin Mary that she would conceive and become the mother of Jesus, described in the Gospel of Luke. The painting was executed in the 1480s and was transferred to canvas from its original oak panel sometime after 1928; it is today held in the Robert Lehman collection of the Metropolitan Museum of Art in New York. The panel shows Mary in a domestic interior with two attendant angels. Gabriel is dressed in ecclesiastical robes, while a dove hovers above Mary, representing the Holy Spirit.

Painting by Sandro Botticelli: Pallas and the Centaur, now in the Uffizi Gallery in Florence. It has been proposed as a companion piece to his Primavera, though it is a different shape. The medium used is tempera paints on canvas and its size is 207 x 148 cm. The painting has been retouched in many places, and these retouchings have faded. The life-size figures are from classical mythology and probably form an allegory. There is a centaur on the left, and a female figure holding a very elaborate halberd on the right. She is clutching the hair of the centaur, who was evidently about to shoot from his bow. The female figure was called Camilla in the earliest record of the painting, an inventory of 1499, but in an inventory of 1516 she is called Minerva, the Roman equivalent of Pallas Athene; Pallas remains her usual modern identification, but Camilla has supporters. Arthur Frothingham suggested that she is Florencia, the personification of the city of Florence. The fine cloth of her dress is decorated with the Medici's three-ring insignia.

Portuguese have founded new trading settlements on Africa's "Gold Coast." They are trading ironware, firearms, textiles and food for gold, ivory, food and slaves.

Campanus of Novara (an Italian mathematician, astronomer, astrologer, and physician) publishes a Latin edition of Euclid's Elementa in fifteen books. This work by Campanus was influential and was the most frequently used compilation of Euclid until the 16th century. It was based on a compilation by Robert of Chester and also includes material from: Arithmetica by Jordanus de Nemore, commentary on Euclid by Anaritius, and additions by Campanus himself. It would later become the first printed edition of Euclid, published by Erhard Ratdolt in Venice in 1482 as Preclarissimus liber elementorum Euclidis perspicacissimi.

Painting by Leonardo da Vinci: Portrait of a Musician, an unfinished painting dated to c. 1483–1487. Produced while Leonardo was in Milan, the work is painted in oils, and perhaps tempera, on a small panel of walnut wood. It is his only known male portrait painting, and the identity of its sitter has been closely debated among scholars. Perhaps influenced by Antonello da Messina's introduction of the Early Netherlandish style of portrait painting to Italy, the work marks a dramatic shift from the profile portraiture that predominated in 15th-century Milan. It shares many similarities with other paintings Leonardo executed there, such as the Louvre Virgin of the Rocks and the Lady with an Ermine, but the Portrait of a Musician is his only panel painting remaining in the city, where it has been in the Pinacoteca Ambrosiana since at least 1672. One of Leonardo's best preserved paintings, there are no extant contemporary records of the commission. Based on stylistic resemblances to other works by Leonardo, virtually all current scholarship attributes at least the sitter's face to him.

Edward IV of England has died. His son succeeds him as Edward V, and he is murdered. The Duke of Gloucester, the youngest brother of Edward IV, usurps the throne and is crowned Richard III.

Leonardo da Vinci sketches a design for a parachute — a pyramid shaped design that was held in shape by a wooden frame. The tent-like design was to be made out of linen and be as large as 23 meters in length. Da Vinci's intent for this invention was to allow people to be able to jump from great heights and land smoothly without injury. More than 500 years after Leonardo da Vinci sketched his design, a Briton has proved that the renaissance genius was indeed the inventor of the first working parachute. Adrian Nicholas, a 38-year-old skydiver from London, fulfilled his life's ambition to prove the aerodynamics experts wrong when he used a parachute based on Da Vinci's design to float almost one and a half miles down from a hot air balloon. Ignoring warnings that it would never work, he built the 187lb contraption of wooden poles, canvas and ropes from a simple sketch that Da Vinci had scribbled in a notebook in 1485. And at 7am on Monday, over the Mpumalanga province of South Africa, Mr Nicholas proved in a 7,000ft descent that the design could indeed be looked upon as a prototype for the modern parachute. Yesterday he said: "It took one of the greatest minds who ever lived to design it, but it took 500 years to find a man with a brain small enough to actually go and fly it. "All the experts agreed it wouldn't work — it would tip over or fall apart or spin around and make you sick — but Leonardo was right all along. It's just that no one else has ever bothered trying to build it before."

Drawing by Albrecht Dürer: Self-Portrait at the age of 13 (the title is modern) is a silverpoint drawing by Albrecht Dürer, dated 1484, when the artist was either twelve or thirteen years of age. It is now in the Albertina museum, Vienna, where it arrived, via the collections of the Imhoff family in Nuremberg and the Habsburg collections, from Dürer's own literary and remains. It is the artist's oldest known surviving drawing, one of the oldest extant self-portraits in European art, and one of the earliest child's drawings, as well. It was completed two years before Albrecht left his father's apprenticeship to study under Michael Wolgemut, whom (some modern authors speculate) he quickly realized was a valuable mentor but whom the younger man may have recognized was unequal to himself in his abilities. Throughout his life Dürer expressed resolute self-confidence. He celebrated himself in his drawings and writings.

Painting by Pietro Perugino: Galitzin Triptych, also known as The Crucifixion with the Virgin, Saint John, Saint Jerome, and Saint Mary Magdalene, probably commissioned by Bartolommeo Bartoli, bishop of Cagli. It originated in a chapel of the Dominican monastic church of San Gimignano and when that was suppressed in 1796-97 it was confiscated by French troops. It was then sold to a certain 'Buzzi', who sold it as a work of Raphael to prince Alexander Mikhailovich Galitzin, the Imperial Russian ambassador to Rome. His nephew Mikhailovich Galitzin moved it to Moscow where, in 1865, it was exhibited at the Galitzin Museum of Western Art. It was sold again in 1886 with the rest of the Galitzin collection, this time to the Hermitage Museum. In April 1931 it was one of the artworks ceded by Stalin to Andrew Mellon, US Secretary of State. In 1937 the Mellon collection formed the core of the new National Gallery of Art.

Painting by Sandro Botticelli: Birth of Venus, probably executed in the mid 1480s. It depicts the goddess Venus arriving at the shore after her birth, when she had emerged from the sea fully-grown (called Venus Anadyomene and often depicted in art). The painting is in the Uffizi Gallery in Florence, Italy. Although the two are not a pair, the painting is inevitably discussed with Botticelli's other very large mythological painting, the Primavera, also in the Uffizi. They are among the most famous paintings in the world, and icons of Italian Renaissance painting; of the two, the Birth is better known than the Primavera. As depictions of subjects from classical mythology on a very large scale they were virtually unprecedented in Western art since classical antiquity, as was the size and prominence of a nude female figure in the Birth. It used to be thought that they were both commissioned by the same member of the Medici family, but this is now uncertain. The Birth seems always to be surrounded by a large crowd, many involved in I was there photography or the production of glamorous selfies, even if the self is taken by someone else.

Painting by Leonardo da Vinci: The (Louvre) Virgin of the Rocks, sometimes the Madonna of the Rocks, is the name of two paintings by the Italian Renaissance artist Leonardo da Vinci, of the same subject, with a composition which is identical except for several significant details. The version generally considered the prime version, the earlier of the two, is unrestored and hangs in the Louvre in Paris. The other, which was restored between 2008 and 2010, hangs in the National Gallery, London. The works are often known as the Louvre Virgin of the Rocks and London Virgin of the Rocks respectively. The paintings are both nearly 2 meters (over 6 feet) high and are painted in oils. Both were originally painted on wooden panels, but the Louvre version has been transferred to canvas. Both paintings show the Virgin Mary and child Jesus with the infant John the Baptist and an angel Uriel, in a rocky setting which gives the paintings their usual name. The significant compositional differences are in the gaze and right hand of the angel. There are many minor ways in which the works differ, including the colors, the lighting, the flora, and the way in which sfumato has been used. Although the date of an associated commission is documented, the complete histories of the two paintings are unknown, leading to speculation about which of the two is earlier. The Virgin of the Rocks in the Louvre is considered by most art historians to be the earlier of the two and dates from around 1483–1486. Most authorities agree that the work is entirely by Leonardo. It is about 8 cm (3 in) taller than the London version. The first certain record of this picture dates from 1625, when it was in the French royal collection. It is generally accepted that this painting was produced to fulfill a commission of 1483 in Milan. This painting is regarded as a perfect example of Leonardo's "sfumato" technique.

Painting by Sandro Botticelli: Venus and Mars a panel painting showing the Roman gods Venus, goddess of love, and Mars, god of war, in an allegory of beauty and valor. The youthful and voluptuous couple recline in a forest setting, surrounded by playful baby satyrs. The painting was probably intended to commemorate a wedding, set into panelling or a piece of furniture to adorn the bedroom of the bride and groom, possibly as part of a set of works. This is suggested by the wide format and the close view of the figures. It is widely seen as representation of an ideal view of sensuous love. It seems likely that Botticelli worked out the concept for the painting, with its learned allusions, with an advisor such as Poliziano, the Medici house poet and Renaissance Humanist scholar.

Henry Tudor, a relative of the Lancaster family, defeats Richard III at the Battle of Bosworth. The Tudor family takes power and is crowned Henry VII.

Henry VII marries Elizabeth of York, uniting the Lancaster and York families. The War of Roses is over.

Painting by Carlo Crivelli: The Annunciation, with Saint Emidius, an altarpiece showing an artistic adaptation of the Annunciation It was painted for the Church of Santissima Annunziata in the Italian town of Ascoli Piceno, in the region of Marche, to celebrate the self-government granted to the town in 1482 by Pope Sixtus IV. The painting displays severely correct perspective. Persian rugs hang over balconies. When Mary protests (How shall this be, seeing I know not a man? Luke 1:34 KJV), the angel responds (The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee: therefore also that holy thing which shall be born of thee shall be called the Son of God. Luke 1:35 KJV) and the Holy Ghost touches Mary with a close-encounters-style beam of light.

Painting by Hans Memling: The Diptych of Maarten van Nieuwenhove, showing on the left side the Virgin and Child, and on the right side Maarten van Nieuwenhove. It is now kept in the Old St. John's Hospital in Bruges. It is unsigned, but has invariably been attributed to Hans Memling since the middle of the 19th century. The painting is an early example of an Early Netherlandish devotional diptych, which still preserves the original frame and hinges. A new invention was showing the scene in a continuous room, instead of against a monochrome background.

Painting by Michelangeo: The Torment of Saint Anthony (or The Temptation of Saint Anthony a painting believed to be done by Michelangelo, who painted this close copy of the famous engraving by Martin Schongauer when he was only 12 or 13 years old. Whether the painting is by Michelangelo is disputed. This painting is now in the Kimbell Art Museum in Fort Worth, Texas. It shows the common medieval subject, included in the Golden Legend and other sources, of Saint Anthony (AD 251 – 356) being assailed in the desert by demons, whose temptations he resisted; the Temptation of St Anthony (or "Trial") is the more common name of the subject. But this composition apparently shows a later episode where St Anthony, normally flown about the desert supported by angels, was ambushed in mid-air by devils.

Painting by Sandro Botticcelli: The Cestello Annunciation, a tempera painting on panel. It was painted for the patron Benedetto di Ser Giovanni Guardi to adorn the church of the Florentine monastery of Cestello, which is now known as Santa Maria Maddalena de'Pazzi. The subject of the painting is the Annunciation, in which the Archangel Gabriel visits the Virgin Mary to 'announce' to her (hence 'Annunciation') that she has been chosen by God to bear the Christ child should she accept this invitation. Her 'fiat' (Let it be done to me) is the Annunciation. If She had said no, there would be no Redemption for mankind. Underneath the painting on its original frame are words in Latin from St. Luke's Gospel 1:35: "The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee." The subject of the Annunciation is common in Christian art and has been depicted by many artists, in multiple formats, and in different time periods. In addition to the Cestello Annunciation, Botticelli also painted a 1485 Annunciation now in the Metropolitan Museum of Art and a 1495-1500 version now housed in the Kelvingrove Art Gallery and Museum.

Painting by Leonardo da Vinci: Lady with an Ermine, a portrait painting, in oils on a panel of walnut wood. Its subject is Cecilia Gallerani, a mistress of Ludovico Sforza ("Il Moro"), Duke of Milan; Leonardo was painter to the Sforza court in Milan at the time of its execution. It is the second of only four surviving portraits of women painted by Leonardo, the others being Ginevra de' Benci, La Belle Ferronnière and the Mona Lisa. Lady with an Ermine is now housed at the Czartoryski Museum in Kraków, and is one of Poland's national treasures.

Painting by Cima da Conegliano: The Sacred Conversation

Painting by Domenico Ghirlandaio: An Old Man and his Grandson, a tempera painting. One of Ghirlandaio's best-known works, it is considered notable for its emotional poignancy. Its realism has been described as unique among the portraits of the Quattrocento. The picture portrays an older man in a red robe, embracing a young child who is also wearing red. They sit in an interior, illuminated against a darkened wall. Behind them at right is a window through which can be seen a generalized landscape, its uneven terrain and winding roads typical of Ghirlandaio's backgrounds. Although the man's fur-lined robe and cappuccio and the boy's elegant doublet and cap indicate a noble heritage, and despite the traditional assumption that the subjects are grandfather and grandson, their identities are unknown.

Painting by Leonardo da Vinci: Madonna Litta, a late 15th-century painting, by Leonardo da Vinci, in the Hermitage Museum, Saint Petersburg. It depicts the Virgin Mary breastfeeding the Christ child, a devotional subject known as the Madonna lactans. The figures are set in a dark interior with two arched openings, as in Leonardo's earlier Madonna of the Carnation, and a mountainous landscape in aerial perspective can be seen beyond. In his left hand Christ holds a goldfinch, which is symbolic of his future Passion. Scholarly opinion is divided on the work's attribution, with some believing it to be the work of a pupil of Leonardo such as Giovanni Antonio Boltraffio or Marco d'Oggiono; the Hermitage Museum, however, considers the painting to be an autograph work by Leonardo. The painting takes its name from the House of Litta, a Milanese noble family in whose collection it was for much of the nineteenth century.

Leonardo da Vinci offers an explanation for capillary action — the ability of rise up in a narrow tube.

Sculpture by Michelangelo: Madonna of the Stairs, a relief sculpture in the Casa Buonarroti, Florence. It was sculpted around 1490–91, when Michelangelo was about fifteen. This and the Battle of the Centaurs were Michelangelo's first two sculptures. The first reference to the Madonna of the Stairs as a work by Michelangelo was in the 1568 edition of Giorgio Vasari's Lives of the Most Excellent Painters, Sculptors, and Architects. The sculpture is exhibited at the Casa Buonarroti in Florence, Italy.

King Charles VIII of France invades Brittany and forces 14-year-old Ann of Brittany to marry him, adding Brittany to French territory.

Christopher Columbus left Castile in August 1492 with three ships and made landfall in the Americas on 12 October, ending the period of human habitation in the Americas now referred to as the pre-Columbian era. His landing place was an island in the Bahamas, known by its native inhabitants as Guanahani. He then visited the islands now known as Cuba and Hispaniola, establishing a colony in what is now Haiti. Columbus returned to Castile in early 1493, with captured natives. Word of his voyage soon spread throughout Europe.

Sculpture by Michelangelo: Battle of the Centaurs, a relief created around 1492. It was the last work Michelangelo created while under the patronage of Lorenzo de' Medici, who died shortly after its completion. Inspired by a classical relief created by Bertoldo di Giovanni, the marble sculpture represents the mythic battle between the Lapiths and the Centaurs. A popular subject of art in ancient Greece, the story was suggested to Michelangelo by the classical scholar and poet Poliziano. The sculpture is exhibited in the Casa Buonarroti in Florence, Italy. Michelangelo, at 16, was working under the patronage of Lorenzo de' Medici when he sculpted the Battle of the Centaurs, although the work was not commissioned but created for himself. The work reflected what was then a current fashion for reproducing ancient themes.

Drawing by Leonardo da Vinci: Vitruvian Man. Inspired by the writings of the ancient Roman architect Vitruvius, the drawing depicts a nude man in two superimposed positions with his arms and legs apart and inscribed in both a circle and square. It was described by the art historian Carmen C. Bambach as "justly ranked among the all-time iconic images of Western civilization". Although not the only known drawing of a man inspired by the writings of Vitruvius, the work is a unique synthesis of artistic and scientific ideals and often considered an archetypal representation of the High Renaissance. The drawing represents Leonardo's conception of ideal body proportions, originally derived from Vitruvius but influenced by his own measurements, the drawings of his contemporaries, and the De pictura treatise by Leon Battista Alberti. Leonardo produced the Vitruvian Man in Milan and the work was probably passed to his student Francesco Melzi.

Spain's monarchs, Ferdinand and Isabella, do their part in a war against Islam — they annex Granada. Also they give Jews three months to convert to Christianity if they are to avoid banishment from the country. And the voyage that the monarchy is paying for, led by Christopher Columbus, sets sail for China by going westward.

Italian explorer Christopher Columbus observes that Native Americans use tobacco as a medicinal herb. Columbus acquires some dried tobacco leaves from the Natives, personally tests the leaves for efficacy, and then (as a satisfied customer) transports samples back to Europe.

Leonardo da Vinci is the first the theorize seriously about flying machines.

Tobacco plant and smoking first introduced in Europe. Human health will be changed for centuries.

Painting by Albrecht Dürer: Christ as the Man of Sorrows. Bearing the marks of martyrdom and holding the instruments used to scourge him in his hands, a pensive, exhausted man crouches before us and looks straight at us, questioningly. This is an unusual mixture of a concrete moment in time and a summary of the entire Passion of Jesus. With the living figure of Christ and the expressive look on his face, this work testifies to the perceptiveness of the young Dürer. By inviting believers in a special way to immerse themselves compassionately in the man's suffering, the small format painting shows itself to be an exceptional devotional picture.

Painting by Hieronymus Bosch: The Hermit Saints, a religious oil on panel painting displayed as a triptych. The entirety of the triptych painting measures 86 by 60 centimetres (34 in × 24 in). This artwork is currently being housed at the Gallerie dell'Accademia, Venice. Saints are a common theme in Bosch's artwork; for him, they are a reference to the living and also to suffering against what was considered sinful. Likewise, there is often the portrayal of brutality and agony that far outweighs the beauty in Bosch's work since he uses saints as a moral paradigm of the artist's time. He represents them as those who are most faithful in their beliefs.

Painting by Leonardo da Vinci: La Belle Ferronnière,a portrait painting of a lady. It is also known as Portrait of an Unknown Woman. The painting's title, applied as early as the seventeenth century, identifying the sitter as the wife or daughter of an ironmonger (a ferronnier), was said to be discreetly alluding to a reputed mistress of Francis I of France, married to a certain Le Ferron. Later she was tentatively identified as Lucretia Crivelli, a married lady-in-waiting to Duchess Beatrice of Milan, who became another of the Duke's mistresses. Although the model of the painting La Belle Ferronnière is still shrouded in mystery, the landmark exhibition "Leonardo Da Vinci: Painter at the Court of Milan" (National Gallery, London, 9 Nov. 2011 – 5 Feb. 2012) listed the portrait as possibly depicting Beatrice d'Este, wife of Ludovico Sforza. This challenges an earlier identification of the sitter as Lucrezia Crivelli, a mistress of Ludovico. However, Ferronni&egrare could be a reference to Beatrice Sforza's birthplace, the Duchy of Ferrara.

Following heavy snowfall in Florence, the Italian sculptor Michelangelo was commissioned by the Medicis to build a snowman.

Piero de Medici has ruled since the death of his father, Lorenzo, in 1492. He makes peace with the French, who have invaded Tuscany (in which Florence is located). A political rising drives him into exile. Florence is in anarchy. A Dominican priest, Savonarola, is anti-Renaissance. He is opposed to popular music, art and other worldliness.

The Treaty of Tordesillas, signed in Tordesillas, Spain, on 7 June 1494, and ratified in Setúbal, Portugal, divided the newly discovered lands outside Europe between the Kingdom of Portugal and the Crown of Castile, along a meridian 370 leagues west of the Cape Verde islands, off the west coast of Africa. That line of demarcation was about halfway between Cape Verde (already Portuguese) and the islands visited by Christopher Columbus on his first voyage (claimed for Castile and León), named in the treaty as Cipangu and Antillia (Cuba and Hispaniola). The lands to the east would belong to Portugal and the lands to the west to Castile, modifying an earlier bull by Pope Alexander VI. The treaty was signed by Spain on 2 July 1494, and by Portugal on 5 September 1494. The other side of the world was divided a few decades later by the Treaty of Zaragoza, signed on 22 April 1529, which specified the antimeridian to the line of demarcation specified in the Treaty of Tordesillas. Portugal and Spain largely respected the treaties, while the indigenous peoples of the Americas did not acknowledge them.

Summa de arithmetica, geometria, proportioni et proportionalita (Summary of arithmetic, geometry, proportions and proportionality) is a book on mathematics written by Luca Pacioli and first published in 1494. It contains a comprehensive summary of Renaissance mathematics, including practical arithmetic, basic algebra, basic geometry and accounting, written for use as a textbook and reference work. Written in vernacular Italian, the Summa is the first printed work on algebra, and it contains the first published description of the double-entry bookkeeping system. It set a new standard for writing and argumentation about algebra, and its impact upon the subsequent development and standardization of professional accounting methods was so great that Pacioli is sometimes referred to as the "father of accounting".

Whiskey invented in Scotland.

Painting by Piero di Cosimo: The Death of Procris, A Satyr mourning over a Nymph are names given to an unsigned, undated panel painting in the National Gallery in London, United Kingdom, securely attributed to Piero di Cosimo (who never signed his works). Its date is uncertain, and its subject has been a matter of dispute. The name The Death of Procris (Italian: Morte di Procri) has been used since the 19th century, and is supposed to have been inspired by Ovid's tale of the death of Procris at the hands of her husband Cephalus, in Metamorphoses VII. Despite the uncertainty surrounding the subject matter, the painting, which shows a satyr mourning over the body of a young woman, has been one of the most popular works by Piero di Cosimo. Erwin Panofsky was mesmerized by the "strange lure emanating from the picture", and other commentators have admired its "hazy atmosphere of a waking dream".

Scroll by Sesshū Tōyō: Haboku sansui, Broken Ink Landscape, a splashed-ink landscape painting on a hanging scroll. The ink wash painting is classified as a National Treasure of Japan and currently held by the Tokyo National Museum. Sesshū Tōyō was a Zen Buddhist monk and painter. The work is a development of suibokuga paintings made with Chinese ink (sumi), using dark and light shades on a silk or paper medium. The monochromatic style can result in artworks similar to calligraphy. In spite of its title, the work is not one of "broken ink" (haboku) but rather one of "splashed ink" (hatsuboku). In this style, the painter avoids strongly defined outlines, with shapes indicated by color washes in lighter and darker tones. The work slowly reveals itself to the viewer. Emerging from the undefined forms is the suggestion of misty mountains in the background. In the foreground are cliffs and bushes, and the triangular roofline and a sloping banner for a wine shop with vertical lines forming a fence. Below is indicated the flat surface of a body of water, with two people to the right in a rowing boat. The scroll measures 148.6 by 32.7 centimetres (58.5 in × 12.9 in). It bears a dedicatory inscription by the artist, dating it to the middle of the third month in the fourth year of the Meiō era (that is, April or May 1495), when Sesshū was aged 76.

Engraving by Albrecht Dürer: The Holy Family with the Dragonfly, also known as The Holy Family with the Mayfly, The Holy Family with the Locust, and The Holy Family with the Butterfly. It depicts both the Holy Family and the Holy Trinity, as the Virgin Mary sits on a bench holding Jesus with Joseph beside them, while God the Father and the Holy Ghost in the form of a dove look down from the clouds. In the lower right corner is an insect frequently identified as a dragonfly. However, Dürer may have intended it as a butterfly, a creature whose dramatically transformative life-cycle makes it a perfect symbol of resurrection and redemption. The abundance of beautifully-rendered textures in the richly detailed landscape show how early Dürer mastered the art of engraving.

French gunners begin using cast-iron cannonballs rather than stones.

Painting by Vittore Carpaccio: Miracle of the Relic of the Cross at the Ponte di Rialto, also known as The Healing of the Madman, is a painting dating from c. 1496. It is now housed at the Gallerie dell'Accademia in Venice. The painting was commissioned for the Grand Hall of the Scuola Grande di San Giovanni Evangelista, the seat of the eponymous brotherhood in Venice. The subject of the paintings was to be the miracles of a fragment of the True Cross. The canvasses were all executed between 1496–1501. This painting shows the miracle of the healing of a madman through the relic of the Holy Cross, held by the Patriarch of Grado Francesco Querini, which took place in the Palazzo a San Silvestro on the Canal Grande, near the Rialto Bridge.

Painting by Leonardo da Vinci: La Bella Principessa,also known as Portrait of Bianca Sforza, Young Girl in Profile in Renaissance Dress and Portrait of a Young Fiancée, is a portrait in colored chalks and ink, on vellum, of a young lady in fashionable costume and hairstyle of a Milanese of the 1490s. Some scholars have attributed it to Leonardo da Vinci but the attribution and the work's authenticity have been disputed. Supporters of the theory that it was by Leonardo have propositioned that Bianca Maria Sforza is the woman depicted in the drawing. Some of those who disagree with the attribution to Leonardo believe the portrait is by an early 19th-century German artist imitating the style of the Italian Renaissance, although radiocarbon dating tests show a much earlier date for the vellum. It has also been denounced as a forgery. The white lead has been dated to be at least 225 years old. The work sold for just under $22,000 at auction in 1998, and was bought by its current owner Peter Silverman in 2007. He has championed the attribution to Leonardo, supported by the analysis of academics Martin Kemp and Pascal Cotte.

The bronze equestrian statue of Bartolomeo Colleoni designed by Andrea del Verrocchio and completed by Alessandro Leopardi is unveiled in Venice

Sculpture by Michelangelo: Bacchus. The statue is somewhat over life-size and represents Bacchus, the Roman god of wine, in a reeling pose suggestive of drunkenness. Commissioned by Raffaele Riario, a high-ranking Cardinal and collector of antique sculpture, it was rejected by him and was bought instead by Jacopo Galli, Riario's banker and a friend to Michelangelo. Together with the Pietà, the Bacchus is one of only two surviving sculptures from the artist's first period in Rome.

Engraving by Albrecht Dürer: The Four Naked Women, or The Four Witches. It is one of his earliest signed engravings and shows four exuberant nude women gathered conspiratorially in a circle in a confined interior setting, perhaps a bathhouse, which appears to have entrances from either side. Although the image is clearly erotic, a small horned demon in the left-hand portal, perhaps representing temptation, looks out and holds what may be a hunting object, engulfed in flames. The engraving has been subject to prolonged and significant scholarly analysis it remains enigmatic, and there is nothing in his writings to indicate his intent. There is no consensus as to its subject matter or its intended meaning, with art historians associating it with either witch hunting or figures from classical mythology. The women stand underneath a suspended globe or sphere and before an open stone window, which, given the human skull and thigh bone placed across from it, maybe a gateway to death, and that the women are engaged in some type of nefarious scheme, perhaps linked to the 1487 inquisition treatise Malleus Maleficarum. The alternative view is that the women represent Greek or Roman goddesses, perhaps Hecate, patroness of evil magic, poisonous plants, and ghosts, or her earthly counterpart Diana. Dürer's monogram "AD" appears on the centre of the floor. Numerous original prints exist, held at a number of major museums.

Boys working under Savonarola collect from homes things associated with moral laxity: mirrors, cosmetics, pictures, books, fine dresses, the works of immoral poets. Savonarola has these burned. Renaissance art work is lost. Pope Alexander VI excommunicates Savonarola.

Polish astronomer Nicolaus Copernicus records a star being occluded by the moon.

Painting by Leonardo da Vinci: The Last Supper, a mural painting, dated to c. 1495–1498, housed in the refectory of the Convent of Santa Maria delle Grazie in Milan, Italy. The painting represents the scene of the Last Supper of Jesus with the Twelve Apostles, as it is told in the Gospel of John — specifically the moment after Jesus announces that one of his apostles will betray him. Its handling of space, mastery of perspective, treatment of motion and complex display of human emotion has made it one of the Western world's most recognizable paintings and among Leonardo's most celebrated works. Some commentators consider it pivotal in inaugurating the transition into what is now termed the High Renaissance. The painting is huge (roughly 15 feet × 30 feet) and covers the end wall of the refectory. To appreciate the size, one must see it in person.

Painting by Albrecht Dürer: Self Portrait, the second of Albrecht Dürer's three painted self-portraits and was executed in oil on wood panel, after his first trip to Italy. In the depiction, Dürer elevates himself to the social position he believed suited to an artist of his ability. He presents himself in half length, under an arch, turned towards the viewer. He bears an arrogant expression, betraying the assured self-confidence of a young artist at the height of his ability. His presence dominates the pictorial space, from his hat, which almost reaches the top of the canvas, to his arm positioned on the lower ledge, where he rests his fingers enclosed in fine, rich gloves. Dürer is depicted in front of an open window before a flat landscape containing a lake and distant snow-capped mountains. The landscape may represent either the memory of his recent travels abroad or his inner mental state. Light spills from the window, falling along his head to highlight both his delicate skin tones and long blond hair. Dürer is dressed with effeminate grace in flamboyant, extravagant clothes showing the influence of Italian fashion. His low-necked shirt or chemise is of fine linen, gathered and trimmed with a band of gold braid or embroidery, and worn under an open-fronted doublet and a cloak tied over one shoulder. His white jacket has black lining under a pleated white shirt, the verticals of which match the horizontals of his headdress. His fingers are crossed, hidden inside silk gloves, an unusual pose for Dürer's early career; he always paid close attention in detailing the hands of his sitters, who are usually holding an object; examples include a pillow, rosary, sheet of paper and flower. Dürer is presented as almost seductive, with a rakish patterned hat placed over long, almost girlishly curled blond locks of hair under a draped pointed hat with a tassel. He looks out at the viewer with a cool ironic stare.

Savonarola is hanged. An enraged crowd burns Savonarola at the same spot where he ordered his bonfire.

Portuguese navigator Vasco de Gama sails around the Cape of Good Hope and crosses the Indian Ocean to reach India.

Drawing by Leonardo da Vinci: Portrait of Isabella d'Este,which was executed between 1499 and 1500. It depicts Isabella d'Este, Marchioness of Mantua. During the Italian Wars of 1499–1504, the French invaded Italy which caused Leonardo to flee from Milan to Mantua. There he had met Isabella, where she commissioned her portrait from him. Whether Leonardo completed the portrait is unknown. There is evidence through letters of the time that he held a fully completed painting of her, but they are vague in describing it. It is possible that the painting was lost to time or that it was, in fact, never completed at all. A version of the portrait in oils on canvas was found in a collection in Switzerland in 2015, but it has yet to be verified.

Sculpture by Michelangelo: the Pietà, a Carrara marble sculpture of Jesus and Mary at Mount Golgotha representing the "Sixth Sorrow" of the Virgin Mary by Michelangelo Buonarroti, in Saint Peter's Basilica, Vatican City, for which it was made . It is a key work of Italian Renaissance sculpture and often taken as the start of the High Renaissance. The sculpture captures the moment when Jesus, taken down from the cross, is given to his mother Mary.

German Benedictine abbot and polymath Johannes Trithemius writes Steganographia, a major work on cryptography. The book is published in 1606. This book is in three volumes, and appears to be about magic — specifically, about using spirits to communicate over long distances. However, since the publication of a decryption key to the first two volumes in 1606, they were discovered to be actually concerned with cryptography and steganography. Until recently, the third volume was widely believed to be solely about magic, but the "magical" formulas have now been shown to be covertexts for yet more material on cryptography. The book was placed on the Index Librorum Prohibitorum in 1609 and removed in 1900.

Painting by Hieronymous Bosch: The Garden of Earthly Delights the modern title given to a triptych oil painting on oak panel painted by the Early Netherlandish master Hieronymus Bosch, between 1490 and 1510, when Bosch was between 40 and 60 years old. Bosch's religious beliefs are unknown, but interpretations of the work typically assume it is a warning against the perils of temptation. The outer panels place the work on the Third Day of Creation. The intricacy of its symbolism, particularly that of the central panel, has led to a wide range of scholarly interpretations over the centuries. Twentieth-century art historians are divided as to whether the triptych's central panel is a moral warning or a panorama of the paradise lost. He painted three large triptychs (the others are The Last Judgment of c. 1482 and The Haywain Triptych of c. 1516) that can be read from left to right and in which each panel was essential to the meaning of the whole. Each of these three works presents distinct yet linked themes addressing history and faith. Triptychs from this period were generally intended to be read sequentially, the left and right panels often portraying Eden and the Last Judgment respectively, while the main subject was contained in the centerpiece. It is not known whether The Garden was intended as an altarpiece, but the general view is that the extreme subject matter of the inner center and right panels make it unlikely that it was planned for a church or monastery. It has been housed in the Museo del Prado in Madrid, Spain since 1939.

Painting by Albrecht Dürer:: Lamentation of Christ Lamentation of Christ (also known as Glimm Lamentation) is an oil-on-panel painting of the common subject of the Lamentation of Christ by the German Renaissance artist Albrecht Dürer, executed around 1500 and now in the Alte Pinakothek of Munich, Germany. The work was commissioned by goldsmith Jakob Glimm as a memorial of his first wife, Margaret Holzmann, who a died in 1500. The removal of later re-painting in 1924 showed the original figures of the donors (Glimm and his three sons) and of the dead woman, depicted in far smaller proportions than the religious characters.

Painting by Albrecht Dürer: Paumgartner altarpiece,an early triptych painting by Albrecht Dürer, commissioned by the Paumgartner family of Nuremberg. The central panel depicts a nativity scene, while the wings depict Saint George (left) and Saint Eustace (right). The saint's faces are donor portraits of the brothers Stephan and Lukas Paumgartner, respectively. Other members of the Paumgartner family are depicted as small figures in the center panel. In 1616 the painting was bought by Maximilian I, Elector of Bavaria and taken to Munich. There it was altered to suit 17th century tastes. This entailed adding helmets, horses, and landscape backgrounds to the portraits of the saints and painting over the small donor figures in the center panel. These embellishments were removed by restorators in 1903. On 20 April 1988, the Paumgartner altarpiece was one of three paintings at the Alte Pinakothek that were attacked with concentrated sulfuric acid by the serial art vandal Hans-Joachim Bohlmann. It alone suffered at least $12 million worth of damage. After 21 years of restoration, it was returned to display in 2010.

Pedro Álvares Cabral, a Portuguese nobleman, military commander, navigator and explorer, sailed far into the western Atlantic Ocean, perhaps intentionally, and made landfall (April 1500) on what he initially assumed to be a large island. As the new land was within the Portuguese sphere according to the 1494 Treaty of Tordesillas, Cabral claimed it for the Portuguese Crown. He explored the coast, realizing that the large land mass was probably a continent, and dispatched a ship to notify King Manuel I of the new territory. The continent was South America, and the land he had claimed for Portugal later came to be known as Brazil. The fleet reprovisioned and then turned eastward to resume the journey to India.

The Castilian navigator and cartographer, Juan de la Cosa, creates a world map that includes the earliest known representation of the New World and the first depiction of the equator and the Tropic of Cancer on a nautical chart. Juan de la Cosa's map is a manuscript nautical chart of the world drawn on two joined sheets of parchment sewn onto a canvas backing. It measures 96 cm high by 183 cm wide. A legend written in Spanish at the western edge of the map translates as "Juan de la Cosa made this (map) in the port of Santa Maria in the year 1500". The overall style is similar to other contemporary charts of the Mediterranean, especially maps produced in Majorca, an important center of map making at the time.

Chinese legendary adventurer Wan Hu attempts to leave the Earth by sitting on a chair with 47 rockets tied to it, holding a kite in each of his hands, and flying into the sky after his servants were ordered to light the fuses to the rockets. But the rockets exploded and Wan Hu was gone when the air cleared. While most authorities consider the story apocryphal, some Chinese scholars believe that foreigners from several different countries in the west were unlikely to fabricate such a story out of thin air. The tale may be based on the stories told by European missionaries who arrived in China since the late Ming dynasty, and then passed on by word of mouth. Alternatively, these European and American scholars may have indirectly relied on records in an ancient Chinese document that has been subsequently lost.

Leonardo da Vinci, finding many fossils in canal building sites, proposes that fossil shells of marine animals are found on mountains because Earth undergoes transformations that cause areas once submerged to become exposed.

Painting by Albrecht Dürer: Self Portrait, a panel painting. Painted early in 1500, just before his 29th birthday, it is the last of his three painted self-portraits. Art historians consider it the most personal, iconic and complex of his self-portraits. The self-portrait is most remarkable because of its resemblance to many earlier representations of Christ. Art historians note the similarities with the conventions of religious painting, including its symmetry, dark tones and the manner in which the artist directly confronts the viewer and raises his hands to the middle of his chest as if in the act of blessing. Dürer's face has the inflexibility and impersonal dignity of a mask, hiding the restless turmoil of anguish and passion within. In its directness and apparent confrontation with the viewer, the self-portrait is unlike any that came before. It is half-length, frontal and highly symmetrical; its lack of a conventional background seemingly presents Dürer without regard to time or place. The placement of the inscriptions in the dark fields on either side of Dürer are presented as if floating in space, emphasizing that the portrait has a highly symbolic meaning. Its somber mood is achieved through the use of brown tones set against the plain black background. The lightness of touch and tone seen in his earlier two self-portraits has been replaced by a far more introverted and complex representation. In 1500, a frontal pose was exceptional for a secular portrait.

Painting by Giovanni Bellini: The Doge Leonardo Loredan portrays Leonardo Loredan, the Doge of Venice from 1501 to 1521, in his ceremonial garments with the corno ducale worn over a linen cap, and is signed IOANNES BELLINVS on a cartellino ("small paper"). It is on display in the National Gallery in London. The painting would initially have been in Venice and was probably looted when Napoleon conquered the city. It was bought in 1807 for thirteen guineas by William Thomas Beckford, who in 1844 sold it to the National Gallery for £630 (equivalent to £79,585 in 2023).

Painting by Leonardo da Vinci: The (London) Virgin of the Rocks, sometimes the Madonna of the Rocks, is the name of two paintings by the Italian Renaissance artist Leonardo da Vinci, of the same subject, with a composition which is identical except for several significant details. The version generally considered the prime version, the earlier of the two, is unrestored and hangs in the Louvre in Paris. The other, which was restored between 2008 and 2010, hangs in the National Gallery, London. The works are often known as the Louvre Virgin of the Rocks and London Virgin of the Rocks respectively. The paintings are both nearly 2 meters (over 6 feet) high and are painted in oils. Both were originally painted on wooden panels, but the Louvre version has been transferred to canvas. Both paintings show the Virgin Mary and child Jesus with the infant John the Baptist and an angel Uriel, in a rocky setting which gives the paintings their usual name. The significant compositional differences are in the gaze and right hand of the angel. There are many minor ways in which the works differ, including the colors, the lighting, the flora, and the way in which sfumato has been used. Although the date of an associated commission is documented, the complete histories of the two paintings are unknown, leading to speculation about which of the two is earlier. The London version is also ascribed to Leonardo da Vinci, and ascribed a date before 1508. Originally thought to have been partially painted by Leonardo's assistants, a close inspection of the painting during the recent restoration between 2008 and 2010 has led the conservators from the National Gallery to conclude that the greater part of the work is by the hand of Leonardo, but debate continues. Parts of the painting, the flowers in particular, indicate the collaboration and have led to speculation that the work is entirely by other hands, possibly Leonardo's assistant Giovanni Ambrogio de Predis and perhaps Evangelista.

African Slaves in the New World Spanish settlers bring slaves from Africa to Santo Domingo (now the capital of the Dominican Republic).

Ismail I, the founder and first shah of Safavid Iran, ruled from 1501 until his death in 1524. His reign is often considered the beginning of modern Iranian history, as well as one of the gunpowder empires. The rule of Ismail I is one of the most vital in the history of Iran. Before his accession in 1501, Iran, since its Islamic conquest eight-and-a-half centuries earlier, had not existed as a unified country under native Iranian rule. The dynasty founded by Ismail I would rule for over two centuries, being one of the greatest Iranian empires and at its height being amongst the most powerful empires of its time, ruling all of present-day Iran, the Republic of Azerbaijan, Armenia, most of Georgia, the North Caucasus, and Iraq, as well as parts of modern-day Turkey, Syria, Pakistan, Afghanistan, Uzbekistan, and Turkmenistan.

Leonardo da Vinci as comparative anatomist: human leg vs. canine leg.

Amerigo Vespucci maps the two stars Alpha Centauri and Beta Centauri, as well as the stars of the constellation Crux, which are below the horizon in Europe.

Painting by Albrecht Dürer: Young Hare (German: Feldhase), a 1502 watercolor and bodycolor painting. Painted in 1502 in his workshop, it is acknowledged as a masterpiece of observational art alongside his Great Piece of Turf from the following year. The subject is rendered with almost photographic accuracy, and although the piece is normally given the title Young Hare, the portrait is sufficiently detailed for the hare to be identified as a mature specimen — the German title translates as "Field Hare" and the work is often referred to in English as the Hare or Wild Hare. The subject was particularly challenging: the hare's fur lay in different directions and the animal was mottled with lighter and darker patches all over, Dürer had to adapt the standard conventions of shading to indicate the outline of the subject by the fall of light across the figure. Despite the technical challenges presented in rendering the appearance of light with a multi-colored, multi-textured subject, Dürer not only managed to create a detailed, almost scientific, study of the animal but also infuses the picture with a warm golden light that hits the hare from the left, highlighting the ears and the run of hair along the body, giving a spark of life to the eye, and casting a strange shadow to the right.

Painting by Leonardo da Vinci: Salvator Mundi, a painting attributed in whole or in part to the Italian High Renaissance artist Leonardo da Vinci, dated to c. 1499–1510. Long thought to be a copy of a lost original veiled with overpainting, it was rediscovered, restored, and included in an exhibition of Leonardo's work at the National Gallery, London, in 2011–2012. Christie's, which sold the work in 2017, stated that most leading scholars consider it an original work by Leonardo, but this attribution has been disputed by other leading specialists, some of whom propose that he only contributed certain elements; others believe that the extensive restoration prevents a definitive attribution. The painting depicts Jesus Christ in anachronistic blue Renaissance attire, making the sign of the cross with his right hand, while holding a transparent, non-refracting crystal orb in his left, signalling his role as Salvator Mundi and representing the 'celestial sphere' of the heavens. The painting was sold at auction for US$450.3 million on 15 November 2017 by Christie's in New York to Prince Badr bin Abdullah Al Saud, setting a new record for the most expensive painting ever sold at public auction.

Christopher Columbus leaves Cadiz, Spain for his fourth and final voyage to the New World.

Portuguese explorers, led by Pedro Álvares Cabral, sail into Guanabara Bay, Brazil, mistaking it for the mouth of a river, which they name Rio de Janeiro.

Painting by Albrecht Dürer: The Great Piece of Turf (German: Das grosse Rasenstück), a watercolor painting created at his Nuremberg workshop. It is a study of a seemingly unordered group of wild plants, including dandelion and greater plantain. The work is considered one of the masterpieces of Dürer's realistic nature studies. In 1495 Dürer returned from his Wanderjahre in Italy and settled in Nuremberg, where he opened a workshop. He was only twenty-four years old at the time, but the workshop soon gained a great reputation for the high quality of his work. In 1500 he produced what is perhaps his most famous work, his Christ-like Self-Portrait. At the same time he was also creating smaller-scale works that were more focused on the study of nature, such as the Great Piece of Turf, which he painted in 1503, and the Young Hare from the year before. Description The watercolor shows a large piece of turf and little else. The various plants can be identified as cock's-foot, creeping bent, smooth meadow-grass, daisy, dandelion, germander speedwell, greater plantain, hound's-tongue and yarrow. The painting shows a great level of realism in its portrayal of natural objects. Some of the roots have been stripped of earth to be displayed clearly to the spectator.

Painting by Leonardo a Vinci: The Mona Lisa. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, the most sung about, [and] the most parodied work of art in the world." The painting's novel qualities include the subject's enigmatic expression, monumentality of the composition, the subtle modelling of forms, and the atmospheric illusionism. The painting has been traditionally considered to depict the Italian noblewoman Lisa del Giocondo. It is painted in oil on a white poplar panel. Leonardo never gave the painting to the Giocondo family. It was believed to have been painted between 1503 and 1506; however, Leonardo may have continued working on it as late as 1517. King Francis I of France acquired the Mona Lisa after Leonardo's death in 1519, and it is now the property of the French Republic. It has normally been on display at the Louvre in Paris since 1797.

At the Battle of Cerignola Spanish forces defeat the French, considered the first battle in history won by gunpowder small arms.

Painting by Albrecht Dürer: The Adoration of the Magi,a panel painting produced under commission by Frederick the Wise for the altar of the Schlosskirche in Wittenberg. It is considered one of Dürer's best and most important works from the period between his first and second trips to Italy (1494–1495 and 1505). The work is modest in size, just over a meter wide, however it is of great importance in Dürer's oeuvre and in the history of art. Before the production of this work, Dürer's achievements lay largely in his printmaking career, or with his self-portraiture. This work is especially crucial in its distinction of Dürer's difference as he combines a fine balance of northern and Italianate conventions in the work. Heinrich Wölfflin referred to the work as "the first completely lucid painting in the history of German art".

Christopher Columbus uses his knowledge of a lunar eclipse this night (February 29) to convince Jamaican tribesmen to provide him with supplies. Three days before the eclipse, Columbus requested a meeting with the Arawak chief and informed him that his Christian god was very angry with his people for no longer supplying him and his men with food. Therefore, he was about to provide a clear sign of his displeasure: Three nights hence, he would all but obliterate the rising full moon, making it appear "inflamed with wrath," which would signify the evils that would soon be inflicted upon all of them. On the appointed evening, as the sun set in the west and the moon started emerging from beyond the eastern horizon, it was plainly obvious to all that something was terribly wrong. By the time the moon appeared in full view, a small but noticeable dark scallop had been removed from its lower edge. And, just over an hour later, as evening twilight ended and full darkness descended, the moon indeed exhibited an eerily inflamed and "bloody" appearance: In place of the normally brilliant late winter full moon there now hung a dim red ball in the eastern sky. According to Columbus' son, Ferdinand, the Arawaks were terrified at this sight and "with great howling and lamentation came running from every direction to the ships laden with provisions and beseeching the admiral to intercede with his god on their behalf." They promised that they would happily cooperate with Columbus and his men if only he would restore the moon back to its normal self.

Painting by Raphael: Madonna del Granduca was probably painted in 1505, shortly after Raphael had arrived in Florence. The influence of Leonardo da Vinci, whose works he got to know there, can be seen in the use of sfumato. The painting belonged to Ferdinand III, Grand Duke of Tuscany, from whom it got its name.

Leonardo da Vinci produces his Codex on the Flight of Birds, a relatively short codex. It comprises 18 folios and measures 21 × 15 centimetres. Now held at the Royal Library of Turin, the codex begins with an examination of the flight behavior of birds and proposes mechanisms for flight by machines. Leonardo constructed a number of these machines, and attempted to launch them from a hill near Florence. However, his efforts failed. In the codex, Leonardo notes for the first time that the center of gravity of a flying bird does not coincide with its center of pressure.

Bermuda is discovered by Spanish explorer Juan de Bermúdez. Bermúdez made 11 registered trips to the New World from 1495 to 1519.

Painting by Albrecht Dürer: Feast of the Rosary, an oil painting by Albrecht Dürer, now in the National Gallery, Prague, Czech Republic. According to Czechoslovakian art historian Jaroslav Pesina, it is "probably the most superb painting that a German master has ever created." The work also relates to a series of artworks commissioned by Maximilian I, his Burgundian subjects or figures close to his family to commemorate the Duchess Mary of Burgundy, Maximilian's first wife and to provide the focus for a cult-like phenomenon that associated her with her name-saint, the Virgin Mary. The work was initially commissioned by Jakob Fugger, an intermediary between emperor Maximilian I and Pope Julius II, during the painter's stay as the banker's guest in Augsburg, though it was produced whilst the painter was in Venice.

Ancient Sculpture: The Laocoön Group,a spectacular masterpiece of ancient art was discovered in a vineyard in Rome. This dramatic ancient marble shows the Trojan priest Laocoön and his sons being crushed to death by sea serpents. This work has been one of the most famous ancient sculptures since it was excavated in Rome in 1506 and put on public display in the Vatican Museums, where it remains today. The statue is very likely the same one that was praised in the highest terms by Pliny the Elder, the main Roman writer on art, who attributed it to Greek sculptors but did not say when it was created. The figures in the statue are nearly life-sized, with the entire group measuring just over 2 m (6 ft 7 in) in height. The sculpture depicts the Trojan priest Laocoön and his sons Antiphantes and Thymbraeus being attacked by sea serpents. The Laocoön Group has been called "the prototypical icon of human agony" in Western art. Unlike the agony often portrayed in Christian art depicting the Passion of Jesus and martyrs, the suffering shown in this statue offers no redemptive power or reward. The agony is conveyed through the contorted expressions on the faces, particularly Laocoön's bulging eyebrows, which were noted by Guillaume Duchenne de Boulogne as physiologically impossible. These expressions are mirrored in the struggling bodies, especially Laocoön's, with every part of his body shown straining. Pliny attributed the work, then in the palace of Emperor Titus, to three Greek sculptors from the island of Rhodes: Agesander, Athenodoros, and Polydorus, but he did not mention the date or patron. In style it is considered "one of the finest examples of the Hellenistic baroque" and certainly in the Greek tradition. However, its origin is uncertain, as it is not known if it is an original work or a copy of an earlier bronze sculpture.

Christopher Columbus dies.

Painting by Gentile and Giovanni Bellini: St. Mark Preaching in Alexandria, an oil on canvas painting dated to 1504–1507, and held in the Pinacoteca di Brera, in Milan. The work is a huge canvas (3.47 m × 7.70 m (137 in × 303 in)) destined for the Scuola Grande di San Marco in Venice. It is 26 m² in surface, and has rich narrative and iconographic features. The cycle of paintings with stories of the life of St Mark was completed around 60 years later by Giorgione and Tintoretto, and is today housed in the Pinacoteca di Brera and the Accademia in Venice. The scene is rich with exotic elements adapted from real-life that Gentile had the opportunity to study during his trip to Constantinople in 1479–1480. Decorative elements of Mamluk architecture, rather than Ottoman, suggest that the artist may also have reached Jerusalem. This painting combines two distinct moments in time, one ancient and one contemporary to Bellini's life, as well as three different places, Alexandria, Venice, and a mountainous landscape in the background.

Martin Luther ordained to the priesthood. Luther was the seminal figure of the Protestant Reformation. He is widely regarded as one of the most influential figures in Western and Christian history. He came to reject several teachings and practices of the Roman Catholic Church; in particular, he disputed the view on indulgences. Luther attempted to resolve these differences amicably, first proposing an academic discussion of the practice and efficacy of indulgences in Ninety-five Theses, which he authored in 1517. In 1520, Pope Leo X demanded that Luther renounce all of his writings, and when Luther refused to do so, excommunicated him in January 1521. Later that year, Holy Roman Emperor Charles V condemned Luther as an outlaw at the Diet of Worms. When Luther died in 1546, Pope Leo X's excommunication was still in effect. Luther taught that salvation and, consequently, eternal life are not earned by good deeds; rather, they are received only as the free gift of God's grace through the believer's faith in Jesus Christ, who is the sole redeemer from sin. Luther's theology challenged the authority and office of the pope by teaching that the Bible is the only source of divinely revealed knowledge, and opposed sacerdotalism by considering all baptized Christians to be a holy priesthood. Attempts by the Catholic Church to suppress the new protestant movement led to more than 200 years of wars — the European wars of religion.

First publication of the Waldseemüller map or Universalis Cosmographia ("Universal Cosmography") is a printed wall map of the world by German cartographer Martin Waldseemüller. It is known as the first map to use the name "America". The name America is placed on South America on the main map. As explained in Cosmographiae Introductio, the name was bestowed in honor of the Italian Amerigo Vespucci. The map is drafted on a modification of Ptolemy's second projection, expanded to accommodate the Americas and the high latitudes. A single copy of the map survives, presently housed at the Library of Congress in Washington, D.C.

Maximilian I becomes Holy Roman Emperor, a role he held until his death in 1519. He was never crowned by the Pope, as the journey to Rome was blocked by the Venetians. He proclaimed himself elected emperor in 1508 (Pope Julius II later recognized this) at Trent, thus breaking the long tradition of requiring a papal coronation for the adoption of the Imperial title. Maximilian was the only surviving son of Frederick III, Holy Roman Emperor, and Eleanor of Portugal. Since his coronation as King of the Romans in 1486, he ran a double government, or Doppelregierung (with a separate court), with his father until Frederick's death in 1493. Maximilian expanded the influence of the House of Habsburg through war and his marriage in 1477 to Mary of Burgundy, the ruler of the Burgundian State, heiress of Charles the Bold, though he also lost his family's original lands in today's Switzerland to the Swiss Confederacy. Through the marriage of his son Philip the Handsome to eventual queen Joanna of Castile in 1496, Maximilian helped to establish the Habsburg dynasty in Spain, which allowed his grandson Charles to hold the thrones of both Castile and Aragon.

Henry VIII becomes King of England. Henry is known for his six marriages and his efforts to have his first marriage (to Catherine of Aragon) annulled. His disagreement with Pope Clement VII about such an annulment led Henry to initiate the English Reformation, separating the Church of England from papal authority. He appointed himself Supreme Head of the Church of England and dissolved convents and monasteries, for which he was excommunicated by the pope. Henry brought radical changes to the Constitution of England, expanding royal power and ushering in the theory of the divine right of kings in opposition to papal supremacy. He frequently used charges of treason and heresy to quell dissent, and those accused were often executed without a formal trial using bills of attainder. He achieved many of his political aims through his chief ministers, some of whom were banished or executed when they fell out of his favor. Thomas Wolsey, Thomas More, Thomas Cromwell, and Thomas Cranmer all figured prominently in his administration.

The Constantinople earthquake occurs in the Sea of Marmara on 10 September 1509 at about 22:00. The earthquake had an estimated magnitude of 7.2 ± 0.3 on the surface-wave magnitude scale. A tsunami and 45 days of aftershocks followed the earthquake. The death toll of this earthquake is poorly known; estimates range between 1,000 and 13,000.

Luca Pacioli's De divina proportione, concerning the golden ratio, is published in Venice, with illustrations by Leonardo da Vinci. Its subject was mathematical proportions (the title refers to the golden ratio) and their applications to geometry, to visual art through perspective, and to architecture. The clarity of the written material and Leonardo's excellent diagrams helped the book to achieve an impact beyond mathematical circles, popularizing contemporary geometric concepts and images.

Chalk Drawing by Leonardo da Vinci: The portrait of a man in red chalk in the Royal Library of Turin is widely, though not universally, accepted as a self-portrait of Leonardo da Vinci. It is thought that Leonardo da Vinci drew this self-portrait at about the age of 60. The portrait has been extensively reproduced and has become an iconic representation of Leonardo as a polymath or "Renaissance Man". Despite this, some historians and scholars disagree as to the true identity of the sitter. The portrait is drawn in red chalk on paper. It depicts the head of an elderly man in three-quarter view, his face turned towards the viewer. The subject is distinguished by his long hair and long waving beard which flow over the shoulders and chest. The length of the hair and beard is uncommon in Renaissance portraits and suggests, as now, a person of sagacity.

An acute respiratory disease emerged in Asia before spreading through North Africa and Europe during the first chronicled, inter-regional flu pandemic generally recognized by medical historians and epidemiologists. Influenza-like illnesses had been documented in Europe since at least Charlemagne, with 1357's outbreak the first to be called influenza, but the 1510 flu pandemic is the first to be pathologically described following communication advances brought about by the printing press. Flu became more widely referred to as coqueluche and coccolucio in France and Sicily during this pandemic, variations of which became the most popular names for flu in early modern Europe. The pandemic caused significant disruption in government, church, and society with near-universal infection and a mortality rate of around 1%.

Painting by Raphael: The School of Athens, a fresco by the Italian Renaissance artist Raphael. It was painted between 1509 and 1511 as part of a commission by Pope Julius II to decorate the rooms now called the Stanze di Raffaello in the Apostolic Palace in Vatican City. The fresco depicts a congregation of ancient philosophers, mathematicians, and scientists, with Plato and Aristotle featured in the center. The identities of most figures are ambiguous or discernable only through subtle details or allusions; among those commonly identified are Socrates, Pythagoras, Archimedes, Heraclitus, Averroes, and Zarathustra. Additionally, Italian artists Leonardo da Vinci and Michelangelo are believed to be portrayed through Plato and Heraclitus, respectively. Raphael included a self-portrait beside Ptolemy. Raphael is the only character who is looking directly at the viewer in the artwork. The painting is notable for its use of accurate perspective projection, a defining characteristic of Renaissance art, which Raphael learned from Leonardo; likewise, the themes of the painting, such as the rebirth of Ancient Greek philosophy and culture in Europe were inspired by Leonardo's individual pursuits in theatre, engineering, optics, geometry, physiology, anatomy, history, architecture and art. The School of Athens is regarded as one of Raphael's best-known works and has been described as his "masterpiece and the perfect embodiment of the classical spirit of the Renaissance".

Painting by Albrecht Dürer: Wing of a European Roller, a nature-study watercolor painted from a dead specimen.

Painting by Raphael: The Triumph of Galatea, a fresco painted for the wealthy banker Agostino Chigi's Villa Farnensina

Hieronymus Brunschwygk's book, Liber de arte Distillandi de Compositis, describes medicinal herbs and the construction of stills for processing them.

Painting by Raphael: Madonna della Seggiola, an oil on panel Madonna painting executed c. 1513–1514, and housed at the Palazzo Pitti Collection in Florence, Italy. Although there is documentation on its arrival to its current location, Palazzo Pitti, it is still unknown who commissioned the painting; however, it has been in the Medici family since the 16th century. It depicts Mary embracing the Christ child while sitting in a chair as the young John the Baptist devoutly watches. The Madonna della Sedia is one of the single most important of Raphael's Madonnas. The painting also showcases Raphael's use of the tondo form and his naturalistic approach to depicting the Madonna. The Madonna della Sedia is Raphael's most humanistic form of the Madonna. Throughout Raphael's life, this humanistic representation of the Madonna occupied his mind. The Madonna della Sedia is the incarnation of a realistic mother and child, representing human motherhood. Painted during his Roman period, this Madonna does not have the strict geometrical form and linear style of his earlier Florentine treatments of the same subject. The Madonna is portrayed subtly and naturalistically, including the drapery, her anatomy, and the movement of her body, as if it was a result of an immediate action.

Juan Ponce de León becomes the first European definitely known to sight the modern-day territory of the United States, specifically Florida, mistaking it for another island. He landed somewhere along Florida's east coast, then charted the Atlantic coast down to the Florida Keys and north along the Gulf coast; historian John R. Swanton believed that he sailed perhaps as far as Apalachee Bay on Florida's western coast. Though in popular culture he was supposedly searching for the Fountain of Youth, there is no contemporary evidence to support the story, which most modern historians consider a myth.

Detailed world map produced by Muhiddin Piri (c. 1470–1553), better known as Piri Reis, an Ottoman corsair, navigator, geographer, and cartographer. He is primarily known today for his cartographic works, including his 1513 world map and the Book of the Sea, a book with detailed information on early navigational techniques as well as relatively accurate charts for their time, describing the ports and cities of the Mediterranean Sea.

Vasco Núñz de Balboa first sees what will become known as the Pacific Ocean.

The earliest printed textbook for midwifes was written by Eucharius Rösslin (d.1526?) of Worms. First published in Germany, Die Rosengarten was dedicated to Princess Katherine of Saxony and was granted a copyright by Emperor Maximilian in 1513. The book was an immediate success. It then appeared in English in 1540 as The Birth of Mankind. By the mid-16th century, it had been translated into all the main European languages and had gone through numerous editions. It survived 40 editions, being used as late as 1730.

Painting by Leonardo da Vinci: Saint John the Baptist, an oil painting on walnut wood. Likely to have been completed between 1513 and 1516, it is believed to be his final painting. Its original size was 69 by 57 centimetres (27 in × 22 in). The painting is in the collection of the Louvre. In November 2022, it was loaned to Louvre Abu Dhabi for two years as part of the museum's fifth anniversary. The work depicts the figure of John the Baptist in isolation through the use of chiaroscuro, with the figure appearing to emerge from the shadowy background. The saint is dressed in furs, has long curly hair and is smiling in an enigmatic manner reminiscent of Leonardo's famous Mona Lisa. He holds a reed cross in his left hand, while his right hand points up toward heaven, similar to the figure of Saint Anne in Leonardo's Burlington House Cartoon. According to Frank Zöllner, Leonardo's use of sfumato "conveys the religious content of the picture", with the "gentle shadows [imbuing] the subject's skin tones with a very soft, delicate appearance, almost androgynous in its effect".

Engraving by Albrecht Dürer: Melancolia I a large 1514 engraving. Its central subject is an enigmatic and gloomy winged female figure thought to be a personification of melancholia — melancholy. Holding her head in her hand, she stares past the busy scene in front of her. The area is strewn with symbols and tools associated with craft and carpentry, including an hourglass, weighing scales, a hand plane, a claw hammer, and a saw. Other objects relate to alchemy, geometry or numerology. Behind the figure is a structure with an embedded magic square, and a ladder leading beyond the frame. The sky contains a rainbow, a comet or planet, and a bat-like creature bearing the text that has become the print's title. Dürer's engraving is one of the most well-known extant old master prints, but, despite a vast art-historical literature, it has resisted any definitive interpretation. Dürer may have associated melancholia with creative activity; the woman may be a representation of a Muse, awaiting inspiration but fearful that it will not return. As such, Dürer may have intended the print as a veiled self-portrait. Other art historians see the figure as pondering the nature of beauty or the value of artistic creativity in light of rationalism, or as a purposely obscure work that highlights the limitations of allegorical or symbolic art.

Raphael's friend, courtier Giovanbattista Branconio dell'Aquila, becomes the personal keeper of Hanno, the white elephant brought to Rome in 1514, as a gift by King Manuel I of Portugal to Pope Leo X (born Giovanni de' Medici) at his coronation.

Johannes Werner publishes his translation of Ptolemy's Geography, Nova Translatio Primi Libri Geographicae Cl. Ptolomaei, containing the Werner map projection and proposing use of the cross-staff for marine navigation.

Painting by Leonardo da Vinci: The Virgin and Child with Saint Anne, an unfinished oil painting, dated to c. 1501–1519. It depicts Saint Anne, her daughter the Virgin Mary and the infant Jesus. Christ is shown grappling with a sacrificial lamb symbolizing his Passion as the Virgin tries to restrain him. The painting was commissioned as the high altarpiece for the Church of Santissima Annunziata in Florence and its theme had long preoccupied Leonardo. Leonardo's painting is at once both pleasing, calm yet confusing upon closer examination. The composition of the three figures is fairly tight, with the Virgin Mary clearly interacting with the infant Jesus. Upon closer examination of their positioning it is apparent that Mary is sitting on Saint Anne's lap. It is unclear what meaning this could have and what meaning Leonardo intended to project with that pose. There is no clear parallel in other works of art and women sitting in each other's lap are not a clear cultural or traditional reference that the viewer can relate to.

Painting by Raphael: Portrait of Baldassare Castiglione, Count of Casatico, an Italian courtier, diplomat, soldier and a prominent Renaissance author. Castiglione wrote Il Cortegiano or The Book of the Courtier, a courtesy book dealing with questions of the etiquette and morality of the courtier. It was very influential in 16th-century European court circles.

The first Johannes Schöner Globe, a printed globe, was made. Two exemplars survive, one at the Historisches Museum in Frankfurt and the other at the Herzogin Anna Amalia Bibliothek, at Weimar. There can be little doubt that Schöner was familiar with the globe made in Nuremberg by Martin Behaim in 1492. An inscription across the northern part of America, says: "This part of the island has been discovered by order of the King of Castile". This is matched by another inscription off America's east coast: "The more southerly part of this island was discovered by order of the King of Portugal"; that is, America is called in both an island. A strait between the southern tip of America and the land to the south can be found on Schöner's globe before its "official discovery" by Ferdinand Magellan in 1520. The actual strait is at 53 degrees south, whereas in the 1515 globe its southernmost tip is shown at about 45 degrees south. Schöner accompanied his globe with an explanatory treatise, Luculentissima quaedam terrae totius descriptio ("A Most Lucid Description of All Lands"). It contained a description of America.

An Indian rhinoceros arrives in Lisbon, the first to be seen in Europe since Roman times.

Alterpiece sculpted and painted by, respectively, the Germans Nikolaus of Haguenau and Matthias Grünewald: Isenheim Alterpiece painted for the Monastery of St. Anthony in Issenheim near Colmar, which specialized in hospital work. The Antonine monks of the monastery were noted for their care of plague sufferers as well as for their treatment of skin diseases, such as ergotism. The image of the crucified Christ is pitted with plague-type sores, showing patients that Jesus understood and shared their afflictions. The veracity of the work's depictions of medical conditions was unusual in the history of European art.

Painting by Hieronymus Bosch: The Haywain Triptych, a panel painting by the Early Netherlandish painter Hieronymus Bosch, now in the Museo del Prado, Madrid, Spain. A date of around 1516 has been established by means of dendrochronological research. The central panel, signed "Jheronimus Bosch", measures 135 cm × 200 cm (53 in × 79 in) and the wings measure 147 cm × 66 cm (58 in × 26 in). The outside shutters feature a version of Bosch's The Wayfarer. The painting was part of a group of six acquired by King Philip II of Spain in 1570, and shipped to El Escorial four years later. It was later sold to the Marquis of Salamanca, and divided into three paintings. In 1848, the central panel was bought by Isabella II of Spain and brought to Aranjuez, the right one was returned to Escorial and the left went to the Prado. The triptych was finally recomposed in 1914 in the latter museum.

The fall of the Nantan meteorite is possibly observed near the city of Nantan, Nandan County, Guangxi (China).

Painting by Sebastiano del Piombo: The Raising of Lazarus, a large altarpiece of 1517–1519 by the Italian High Renaissance artist Sebastiano del Piombo, for which Michelangelo supplied drawings for some figures. Intended for Narbonne Cathedral in France, it is now normally in Room 18 of the National Gallery in London, where it is "NG1", the first painting catalogued at the founding of the gallery in 1824. It was commissioned by Cardinal Giulio de' Medici, then Archbishop of Narbonne and later Pope Clement VII (r. 1523–24), in what was effectively a contest engineered by Michelangelo, using Sebastiano as "a kind of deputy", or "cat's paw", in a rivalry between the two and Raphael, whose Transfiguration (now in the Vatican Pinacoteca) is the same size of 381 cm × 299 cm (150 in × 118 in) and was commissioned for the same cathedral.

Martin Luther publishes his Ninety-five Theses or Disputation on the Power and Efficacy of Indulgences, a list of propositions for an academic disputation. This work is retrospectively considered to have launched the Protestant Reformation and the birth of Protestantism, despite various proto-Protestant groups having existed previously. It detailed Luther's opposition to what he saw as the Roman Catholic Church's abuse and corruption by Catholic clergy, who were selling plenary indulgences, which were certificates supposed to reduce the temporal punishment in purgatory for sins committed by the purchasers or their loved ones.

Ottoman Turks defeat the Mamluks of Egypt and take control of Egypt and the Arabian Peninsula.

A third epidemic of sweating sickness in England hits Oxford and Cambridge.

German surgeon Hans von Gersdorff publishes his Feldbuch der Wundarzney ("Field book of surgery").

Painting by Titian: The Assumption of the Virgin or Frari Assumption, popularly known as the Assunta, is completed. It remains in the position it was designed for, on the high altar of the Basilica di Santa Maria Gloriosa dei Frari or Frari church in Venice. It is the largest altarpiece in the city, with the figures well over life-size, necessitated by the large church, with a considerable distance between the altar and the congregation. It marked a new direction in Titian's style, that reflected his awareness of the developments in High Renaissance painting further south, in Florence and Rome, by artists including Raphael and Michelangelo. The agitated figures of the Apostles marked a break with the usual meditative stillness of saints in Venetian painting, in the tradition of Giovanni Bellini and others. It was perhaps originally rather shocking for the Venetian public, but soon recognised as a masterpiece that confirmed Titian's position as the leading artist in Venice, and one of the most important in all Italy, a rival to Michelangelo and Raphael.

Henricus Grammateus (also known as Henricus Scriptor, Heinrich Schreyber or Heinrich Schreiber)publishes Ayn neu Kunstlich Buech in Vienna, containing the earliest printed use of plus and minus signs for arithmetic. He also publishes Libellus de compositione regularum pro vasorum mensuratione. Deque arte ista tota theoreticae et practicae and a new musical temperament, which is now named after him, for the harpsichord. It was a precursor of the equal temperament.

Dancing plague, a case of dancing mania, breaks out in Strasbourg. Somewhere between 50 and 400 people took to dancing for weeks. There are many theories behind the phenomenon, the most popular being stress-induced mass hysteria, suggested by John Waller. Other theories include ergot and religious explanations. There is controversy concerning the number of deaths.

Leonardo da Vinci dies in Amboise, France, an event represented in (an 1818) painting by the French artist Jean-Auguste-Dominique Ingres, showing the Italian artist and inventor Leonardo da Vinci dying, with Francis I of France holding his head. It was commissioned by Pierre Louis Jean Casimir de Blacas, the French ambassador in Rome, and is now in the Petit Palais in Paris.

Horses are brought to the New World by Hernán Cortéz.

The Miller Atlas, also known as Lopo Homem-Reineis Atlas, a richly illustrated Portuguese partial world atlas is published. It is a joint work of the cartographers Lopo Homem, Pedro Reinel and Jorge Reinel, and illustrated by miniaturist António de Holanda. The regions represented are the North Atlantic Ocean, Northern Europe, the Azores Archipelago, Madagascar, Horn of Africa, the Indian Ocean, Indonesia, the China Sea, the Moluccas, Brazil and the Mediterranean Sea. It was acquired by the librarian Bénigne Emmanuel Clement Miller in 1855 at a bookseller in Santarém, Portugal, hence the name Miller Atlas. In 1897, his widow sold it to the National Library of France, where it has stayed ever since.

A pandemic spreads from the Greater Antilles into Central America, and perhaps as far as Peru, killing much of the indigenous populations in these areas.

Painting by Hans Baldung Grien: Death and the Maiden. Baldung may have been a pupil of Dürer. His paintings and prints included a variety of subjects, but he is best known for macabre, erotic allegories involving witches or young women being embraced by death. The inevitability of death was a favorite theme among many North Renaissance artists.

Painting by Raphael: The Transfiguration is the last painting by the Italian High Renaissance master Raphael. Cardinal Giulio de Medici — who later became Pope Clement VII (in office: 1523–1534) — commissioned the work, conceived as an altarpiece for Narbonne Cathedral in France; Raphael worked on it in the years preceding his death in 1520. The painting exemplifies Raphael's development as an artist and the culmination of his career. Unusually for a depiction of the Transfiguration of Jesus in Christian art, the subject is combined with the next episode from the Gospels (the healing of a possessed boy) in the lower part of the painting. The work is now in the Pinacoteca Vaticana in the Vatican City. From the late 16th century until the early 20th century, various commentators regarded it as the most famous oil painting in the world.

Suleiman I, also known as Suleiman the Magnificent, became Sultan in 1520 and led the Ottoman Empire to its greatest height. He expanded the empire's territory, reformed its legal system, and oversaw a cultural and artistic flourishing known as the Ottoman Renaissance.

Beginning of anabaptist movement in Germany under Thomas Münzer.

Pope Leo X excommunicates Martin Luther.

Ferdinand Magellan passes through a navigable sea route in southern Chile separating mainland South America to the north and Tierra del Fuego to the south. The strait is considered the most important natural passage between the Atlantic and Pacific oceans. The strait is approximately 570 km (310 nmi; 350 mi) long and 2 km (1.1 nmi; 1.2 mi) wide at its narrowest point. Magellan was the first European to discover it. Magellan's original name for the strait was Estrecho de Todos los Santos ("Strait of All Saints"). The King of Spain, Emperor Charles V, who sponsored the Magellan-Elcano expedition, changed the name to the Strait of Magellan in honor of Magellan.

Jacopo Berengario da Carpi publishes Commentaria cum amplissimus additionibus super anatomiam Mundini in Bologna, containing the first printed anatomical illustrations taken from nature and including observation of the vermiform appendix. His book Isagoge breves published in 1522 made him the most important anatomist before Andreas Vesalius.

Pope Leo X confers title Defender of the Faith on King Henry VIII for his Assertio septem sacramentorum against Luther.

Francisco de Cordillo explores the American coast up to South Carolina.

Slave Revolt: the Caribbean Slaves rebel on the Caribbean island of Hispaniola, which now comprises Haiti and the Dominican Republic.

Adrian of Utrecht, Regent of Spain, elected Pope Adrian VI, the last non-Italian Pope for some time.

The Victoria (nau Vittoria), one of the surviving ships of the Magellan expedition, returns to Sanlúcar de Barrameda in Spain under the command of Juan Sebastián Elcano, becoming the first ship to circumnavigate the world. It carries the first (dead) examples of the bird-of-paradise ever to be seen in Europe. Venetian cardinal Gasparo Contarini, in Spain at this time, is the first European to give a correct explanation of the one-day discrepancy in dates observed by the crew on their return.

Painting by Titian: Bacchus and Ariadne, an oil painting that is one of a cycle of paintings on mythological subjects produced for Alfonso I d'Este, Duke of Ferrara, for the Camerino d'Alabastro — a private room in his palazzo in Ferrara decorated with paintings based on classical texts. An advance payment was given to Raphael, who originally held the commission for the subject of a Triumph of Bacchus. At the time of Raphael's death in 1520, only a preliminary drawing was completed. The commission was then handed to Titian. In the case of Bacchus and Ariadne, the subject matter was derived from the Roman poets Catullus and Ovid, and perhaps other classical authors. The painting, considered one of Titian's greatest works, is now in the National Gallery, London. The other major paintings in the cycle are The Feast of the Gods, mostly by Giovanni Bellini, now in the National Gallery of Art, Washington, D.C, and Titian's The Bacchanal of the Andrians and The Worship of Venus, both now in the Museo del Prado, Madrid. The series was a very early treatment of subjects from classical mythology on a heroic scale in painting, rather than in small decorative pieces, and very influential on later works.

Pope Adrian VI dies, Giulio de' Medici becomes Pope Clement VII. Deemed the most unfortunate of the popes, Clement VII's reign was marked by a rapid succession of political, military, and religious struggles — many long in the making — which had far-reaching consequences for Christianity and world politics. Elected in 1524 at the end of the Italian Renaissance, Clement came to the papacy with a high reputation as a statesman. He had served with distinction as chief advisor to Pope Leo X (1513–1521, his cousin), Pope Adrian VI (1522–1523), and commendably as gran maestro of Florence (1519–1523). Assuming leadership at a time of crisis, with the Protestant Reformation spreading, the Church nearing bankruptcy, and large foreign armies invading Italy, Clement initially tried to unite Christendom by making peace among the many Christian leaders then at odds. He later attempted to liberate Italy from foreign occupation, believing that it threatened the Church's freedom. The complex political situation of the 1520s thwarted Clement's efforts.

Anthony Fitzherbert publishes The Boke of Husbandry (Book of Husbandry), one of the classics of English agriculture, containing directions for draining, clearing, and enclosing a farm; and for enriching and reducing the soil to tillage. Lime, marl, and fallowing are strongly recommended. The landlords are advised to grant leases to farmers who will surround their farms, and divide them by hedges into proper enclosures. The Boke of Husbandry gives a clear and minute description of the rural practices of that period.

Painting by Parmigianino: Self-portrait in a Convex Mirror, a small painting, only 24.4 cm diameter (9.6 in). The work is mentioned by Late Renaissance art biographer Giorgio Vasari, who lists it as one of three small-size paintings that the artist brought to Rome with him in 1525. Vasari relays that the self-portrait was created by Parmigianino as an example to showcase his talent to potential customers. The painting depicts the young artist (then twenty one) in the middle of a room, distorted by the use of a convex mirror. The hand in the foreground is greatly elongated and distorted by the mirror. The work was painted on a specially-prepared convex panel in order to mimic the curve of the mirror used.

Giovanni da Verrazzano becomes the first European to explore the Atlantic coast of North America between Florida and New Brunswick in 1524, including New York Bay and Narragansett Bay.

Painting by Lucas Cranach the Elder: Cardinal Albert of Brandenburg before Christ on the Cross, a painting executed with oil on firs and measures 158 cm in height and 112 cm in width. Originally belonging to the Collegiate Church of Aschaffenburg, it passed in 1829 to the Alte Pinakothek in Munich, where it is shown with the title Kardinal Albrecht von Brandenburg vor dem Gekreuzigten kniend.

First publication of Galen's Of the method of curing diseases in the original Greek, by the Aldine Press in Venice.

Publication of Richard Banckes' Herball, the first true herbal printed in Britain.

Christoff Rudolff introduces the mathematical sign designating square root.

Albrecht Dürer's book on geometry and perspective, Underweysung der Messung (Instructions on Measurement) is published at Nuremberg. It is the first book for adults to be published on mathematics in German.

First publication of the collected works of Hippocrates translated into Latin, in Rome.

Painting by Lucas Cranach the Elder: Cupid Complaining to Venus is one of 20 similar works by Cranach and his workshop, with the figures in a variety of poses and differing in other details. The Metropolitan Museum of Art notes that the number of extant versions suggests that this was one of Cranach's most successful compositions. This version was acquired by the National Gallery, London in 1963 and is perhaps the earliest example. It depicts two classical gods of love, standing naked amid a verdant landscape under a blue sky. The work has been interpreted as an allegory of the pleasure and pains of love, and possibly also a warning of the risks of venereal disease. The winged infant Cupid stands the left of a tree which bears red apples. He is holding a honeycomb, possibly taken from a hole towards the bottom of the tree's trunk. He is being assailed by honeybees, infuriated by his theft of their sweet treasure. Venus is depicted as a voluptuous woman to the right of the tree. She is holding up a branch with her left hand, and rests her left foot on another. A stone below Venus's raised foot bears an inscription of a winged serpent with a ring in its mouth, a heraldic device granted to Cranach by Frederick the Wise in 1508. Venus is wearing only a hat of red and gold cloth decorated with a wide circle of ostrich plumes, and two necklaces: a gold chain and a jewelled choker. The pose of Venus, and the apples, allude to paintings of Eve by Cranach.

Transit of Venus occurs. A transit of Venus takes place when Venus passes directly between the Sun and the Earth (or any other superior planet), becoming visible against (and hence obscuring a small portion of) the solar disk. During a transit, Venus is visible as a small black circle moving across the face of the Sun.

Publication of Peter Treveris's The Grete Herball (a translation of Le Grant Herbier) in England.

Painting by Parmigianino: Vision of Saint Jerome, was commissioned on 3 January 1526 in Rome, by Maria Bufalini, wife of Antonio Caccialupi, to decorate the family chapel in the church of San Salvatore in Lauro. The contract mentioned "Francesco Mazola de Parma" and one "Pietro" with the same name, perhaps Parmigianino's uncle Piero Ilario Mazzola. The elongated shape derives from its original destination as part of a triptych, whose sides (never painted) should represent the Immaculate Conception (to which the chapel was dedicated) and the saints Joachim and Anna. According to late Renaissance art biographer Giorgio Vasari, Parmigianino was working to this painting during the Sack of Rome, and he had to stop when the city was ravaged by the imperial troops. He was able to escape paying a ransom, while his uncle remained in Rome, being able to hide the painting in the refectory of Santa Maria della Pace. The painting is divided into two narrative sectors: a lower one, with Saint Jerome is sleeping near the crucifix (with his traditional symbol, the cardinal hat visible near a skull) and receives the vision of St. John the Baptist, identified by the long cross and the baptismal washbasin which is tied at his belt; St. John indicates the Child, represented in the upper sector between the legs of the Madonna, with a shining background behind them. Parmigianino's attention to detail is shown by the Baptist's reed cross, the speckled skin which covers him, the undergrowth near the sleeping Jerome, and the sheen on Mary's dress, the last perhaps inspired by classical sculptures seen by Parmigianino during his trips.

Painting by Hans Holbein, the younger: portrait of Sir Thomas More, an English lawyer, judge, social philosopher, author, statesman, amateur theologian, and noted Renaissance humanist. He also served Henry VIII as Lord High Chancellor of England from October 1529 to May 1532. He wrote Utopia, published in 1516, which describes the political system of an imaginary island state. More opposed the Protestant Reformation, directing polemics against the theology of Martin Luther, Huldrych Zwingli and William Tyndale. More also opposed Henry VIII's separation from the Catholic Church, refusing to acknowledge Henry as supreme head of the Church of England and the annulment of his marriage to Catherine of Aragon. After refusing to take the Oath of Supremacy, he was convicted of treason on what he stated was false evidence, and was executed. At his execution, he was reported to have said: "I die the King's good servant, and God's first." Pope Pius XI canonised More in 1935 as a martyr.

Painting by Lorenzo Lotto: The Annunciation, an oil-on-canvas painting by the Italian Renaissance painter Lorenzo Lotto, executed around somewhere between 1527 and 1534 and housed in the Civic Museum of Villa Colloredo Mels, Recanati, Italy. The painting depicts a bedroom where an Annunciation takes place following an unusual scheme: the angel is on the right, holding a white lily, and has got in from a loggia which opens to a garden (the hortus conclusus). His right arm is pointing at the Father God who has shown in a cloud and is blessing Mary from inside the loggia. Mary is portrayed in the left foreground, looking at the spectator and raising her hands in a surprised gesture. Stylistically, Lotto used expressive gestures and somewhat under-size heads. The number of carefully painted details show the influence of Northern European paintings: they include the baldachin bed, the small window with sealed glasses, the shelf with a small still life, the hatstand, the stool with an hourglass, the prie-dieu and a scared cat which is fleeing. The baldachin was inspired by a relief by Andrea Sansovino at Loreto.

Petrus Apianus publishes a handbook of commercial arithmetic, Ein newe und wolgegründete underweisung aller Kauffmanns Rechnung in dreyen Büchern, mit schönen Regeln und fragstücken begriffen, at Ingolstadt.

Painting by Hans Holbein the Younger: Portrait of the Artist's Family, a portrait of the family of the painter Hans Holbein the Younger by the artist himself. It depicts Holbein's wife Elsbeth Binzenstock, their son Philipp and their daughter Katharina. Holbein painted it during his stay in Basel after his return from England. It was painted, between 1528 and 1529, on paper and glued on wood.

Painting by Jacopo Pontormo: The Deposition from the Cross is an altarpiece, completed in 1528, depicting the Deposition of Christ. It is broadly considered to be the artist's surviving masterpiece. Painted in tempera on wood, it is located above the altar of the Capponi Chapel of the church of Santa Felicita in Florence.

(no entry for this year)

Painting by Antonio da Correggio: Jupiter and Io, an oil on canvas measuring 73.5 cm wide by 162 cm tall (29 in wide by 64 in tall). It depicts a sensuous seduction from Metamorphoses, an epic poem by the ancient Roman writer Ovid. In this particular scene the Roman god Jupiter, in the form of a misty cloud, approaches the beautiful Io who was a river nymph and a princess of Argos and/or a priestess to the goddess Juno. This mortal woman succumbs to her divine lover as the stormy dark mist kisses her rose-and-lily face and caresses her soft white flesh. Her head is thrown back in passionate ecstasy while her fingers and toes curl in orgasmic pleasure. This highly erotic scene displays extraordinary sensuality but with easy delicate tenderness. Correggio's masterpiece is probably the most famous painting depicting Jupiter's seduction of Io. It was commissioned by Federico II Gonzaga, Duke of Mantua, to join three other erotic paintings based upon Metamorphoses. The four-part series was originally intended as a gift for Charles V, Holy Roman Emperor, but Federico II Gonzaga loved them so much that he kept them for himself. He placed them in a large room, which he named the Room of Ovid, in his Palazzo del Te in Mantua. Ironically, the duke only enjoyed these amorous paintings for less than 10 years as he died in 1540 from syphilis.

Painting by Jean Clouet: Portrait of Francis I, King of France.

Italian Girolamo Fracastoro describes syphilis, introduced to Spain by sailors returning from the Americas.

Painting by Antonio da Correggio: Leda and the Swan, an oil on canvas painting from 1530–31 by the Italian painter Correggio, now in the Gemäldegalerie in Berlin. It shows three scenes of Leda's seduction by Jupiter who has taken the form of a swan. Their first meeting is shown on the right hand side and their lovemaking in the center, where Leda sits with the swan between her thighs, guiding him with her left hand. They are accompanied to their left by Cupid with his bow and two cupids with flutes. The third scene (again on the right hand side) is the swan flying away whilst Leda gets dressed. Leda and the Swan was a common subject in 16th-century art.

Sebastian Münster publishes Horologiographia, a treatise on the construction of sun dials.

Europeans start cultivation of the tobacco plant in Central America.

Francisco Pizarro leads the Spanish conquest of the Inca Empire.

Sugarcane is first grown in Brazil.

Painting by Hans Holbein (the Younger): The Ambassadors, also known as Jean de Dinteville and Georges de Selve, after the two people it portrays, it was created in the Tudor period, in the same year Elizabeth I was born. As well as being a double portrait, the painting contains a still life of meticulously rendered objects, the meaning of which is the cause of much debate. An array of expensive scientific objects, related to knowing the time and the cosmos are prominently displayed. Several refer to Rome, the seat of the Pope. A second shelf of objects shows a lute with a broken string, a symbol of discord, next to a hymnal composed by Martin Luther. It incorporates one of the best-known examples of anamorphosis in painting. While most scholars have taken the view that the painting should be viewed side on to see the skull, others believe a glass tube was used to see the skull head on. Either way, death is both prominent and obscured until discovered. Less easily spotted is a carving of Jesus on a crucifix, half hidden behind a curtain at the top left. The Ambassadors has been part of London's National Gallery collection since its purchase in 1890. It was extensively restored in 1997, leading to criticism, in particular that the skull's dimensions had been changed.

Anne Boleyn becomes Queen of England. Anne was the daughter of Thomas Boleyn (later Earl of Wiltshire), and his wife, Elizabeth Howard, and was educated in the Netherlands and France. Anne returned to England in early 1522, to marry her cousin James Butler, 9th Earl of Ormond; the marriage plans were broken off, and instead, she secured a post at court as maid of honor to Henry VIII's wife, Catherine of Aragon. Early in 1523, Anne was secretly betrothed to Henry Percy, son of Henry Percy, 5th Earl of Northumberland, but the betrothal was broken off when the Earl refused to support it. Cardinal Thomas Wolsey refused the match in January 1524. In February or March 1526, Henry VIII began his pursuit of Anne. She resisted his attempts to seduce her, refusing to become his mistress, as her sister Mary had previously been. Henry focused on annulling his marriage to Catherine, so he would be free to marry Anne. After Wolsey failed to obtain an annulment from Pope Clement VII, it became clear the marriage would not be annulled by the Catholic Church. As a result, Henry and his advisers, such as Thomas Cromwell, began breaking the Church's power in England and closing the monasteries. Henry and Anne formally married on 25 January 1533, after a secret wedding on 14 November 1532.

De Principis Astronomiae et Cosmographie by Gemma Frisius (a Dutch physician, mathematician, cartographer, philosopher, and instrument maker) gives the first published explanation of the use of triangulation in surveying and mapmaking. Having established a baseline (e.g., in the figure the cities of Brussels and Antwerp), the location of other cities (e.g. Middelburg, Ghent etc.) can be found by taking a compass direction from each end of the baseline, and plotting where the two directions cross. This was only a theoretical presentation of the concept — due to topographical restrictions, it is impossible to see Middelburg from either Brussels or Antwerp. Nevertheless, the figure soon became well known all across Europe.

(no entry for this year)

The one-man diving bell is invented by Guglielmo de Lorena. De Lorena's device boasted a revolutionary air-supply mechanism which would exchange the air inside while maintaining pressure, allowing the diver to remain underwater for hours. In July 1535, set on exploring a sunken Roman vessel in Lake Nemi, Guglielmo de Lorna and partner Francesco de Marchi used the invention to examine and document sunken barges which had lain at the bottom of Lake Nemi.

Anne Boleyn is beheaded for adultery and treason.

William Tyndale's partial translation of the Bible into English is published, which would eventually be incorporated into the King James Bible.

Niccolò Tartaglia publishes Nova Scientia, a treatise on gunnery science. This was Tartaglia's first published work and was described by Matteo Valleriani as: ... one of the most fundamental works on mechanics of the Renaissance, indeed, the first to transform aspects of practical knowledge accumulated by the early modern artillerists into a theoretical and mathematical framework. Then dominant Aristotelian physics preferred categories like "heavy" and "natural" and "violent" to describe motion, generally eschewing mathematical explanations. Tartaglia brought mathematical models to the fore. One of his findings was that the maximum range of a projectile was achieved by directing the cannon at a 45-degree angle to the horizon.

(no entry for this year)

Painting by Hans Holbein (the younger): Portrait of Anne of Clèves. In 1539, Holbein was sent to Düren, in the Duchy of Clèves, to paint a portrait of Anne of Clèves (1515–1557) as a possible candidate for marriage. The marriage was arranged by Henry's chief advisor, Thomas Cromwell. The portrait was painted by Holbein so that Henry could see what his future bride looked like. Based on the portrait, Henry had a swipe right reaction, but when he finally met her in person, he was greatly disappointed. Anne was King Henry VIII's fourth queen. Her marriage to Henry was the shortest of all the six queens, officially lasting just six months. Anne was given a large settlement, which made her very wealthy. She was granted the title King's Sister and went on to live a very comfortable, independent life, outliving Henry, his other wives and his son, Edward.

Spain annexes Cuba.

Painting by Agnolo Bronzino: Portrait of a Young Man with a Book The Portrait of a Young Man with a Book is a c.1530s oil on board painting by Agnolo Bronzino. It likely depicts a literary friend of the artist holding open a collection of poetry. It entered the Metropolitan Museum of Art in New York in 1929, where it is still held.

Painting by Parmigianino: Madonna with the Long Neck an Italian Mannerist oil painting depicting Madonna and Child with angels. The painting was begun in 1534 for the funerary chapel of Francesco Tagliaferri in Parma, but remained incomplete on Parmigianino's death in 1540. Ferdinando de' Medici, Grand Prince of Tuscany purchased it in 1698 and it has been on display at the Uffizi since 1948. The painting depicts the Virgin Mary seated on a high pedestal in luxurious robes, holding a rather large baby Jesus on her lap. Six angels crowd together on the Madonna's right, adore the Christ-child. In the lower right-hand corner of the painting is an enigmatic scene, with a row of marble columns and the emaciated figure of St. Jerome. A depiction of St. Jerome was required by the commissioner because of the saint's connection with the adoration of the Virgin Mary. The painting is popularly called "Madonna of the Long Neck" because "the painter, in his eagerness to make the Holy Virgin look graceful and elegant, has given her a neck like that of a swan."

Hernando de Alarcón sets sail to explore the Baja California peninsula; on September 26 he enters the Colorado River.

The Society of Jesus, or the Jesuits, is founded by Ignatius of Loyola and six companions with the approval of Pope Paul III.

Georg Joachim Rheticus publishes De Libris Revolutionum Copernici Narratio Prima in Danzig, an abstract of Copernicus' as yet unpublished De revolutionibus orbium coelestium and the first printed publication of Copernican heliocentrism.

Valerius Cordus discovers and describes a method of synthesizing ether ("oleum dulci vitrioli") by adding sulfuric acid to ethyl alcohol.

Publication in London of the first printed book in English on obstetrics, The Byrth of Mankynde, a translation attributed to Richard Jonas from Rösslin's De partu hominis. It will continue to be issued in new editions for more than a century.

The western headwaters of the Amazon River are encountered and explored by Francisco de Orellana.

Spanish explorer Hernando de Soto reaches the Mississippi River, naming it Rio de Espiritu Santo.

Gerardus Mercator makes his first terrestrial globe, for Charles V, Holy Roman Emperor.

Painting by Agnolo Bronzino: Portrait of Bia de' Medici The Portrait of Bia de' Medici is an oil-tempera on wood painting by Agnolo Bronzino, dating to around 1542 and now in the Uffizi in Florence. Some art historians once identified the child as a young Cosimo I de' Medici, but it is now generally accepted to be Giulia.

Painting by Hans Holbein the Younger: Self Portrait The Self-portrait is a small drawing by the German Renaissance artist and printmaker Hans Holbein the Younger, completed around 1542-1543, and housed in the Uffizi, Florence. The gold background was added later by a different artist. According to art historian John Rowlands, "Although this drawing has been enlarged on all sides and heavily reworked, enough of it still shows to allow the assumption that the original work was executed by Holbein.

Juan Rodríguez Cabrillo explores the coast of California.

Pope Paul III establishes the Inquisition in Rome.

War resumes between Francis I of France and Emperor Charles V. This time Henry VIII is allied with the Emperor, while James V of Scotland and Sultan Suleiman I are allied with the French.

Leonhart Fuchs publishes his new herbal De historia stirpium commentarii insignes in Basel. It was illustrated by: Albrecht Meyer, who made drawings based on the actual plants; Heinrich Füllmaurer, who transferred the drawings to woodblock; and Vitus Rudolph Speckle, who cut the blocks and printed the drawings. It covers about 497 plants and has over 500 woodcut illustrations. Over 100 of the plants in the book were first descriptions. The University of Glasgow states that it is considered a landmark work in its field. Stanford University Press considers it one of the best illustrated books of all time and a masterpiece of the German Renaissance. It set a new standard for accuracy and quality, as well as being the first known publication of plants from the Americas, such as pumpkin, maize, marigold, potato, and tobacco. Plants were identified in German, Greek, and Latin, and sometimes English. The book was initially published in Latin and Greek and quickly translated into German. Just during Fuchs' lifetime the book went through 39 printings in Dutch, French, German, Latin, and Spanish and 20 years after his death was translated into English.

Jean Fernel publishes De naturali parte medicinae, presenting human physiology as integral to the study of medicine.

In a brief work titled On Meteorology, Fausto da Longiano argues that Noah's flood "cannot have been universal, according to natural reasons," and endorses a 36,000-year cycle of Earth history accepted by some other scholars.

Painting by Titian: Portrait of the Vendramin Family a painting executed around 1543–1547. It presently hangs in the National Gallery in London. The canvas was commissioned by the noble Vendramin family, and portrays, as dictated by Venetian custom, only male members of the dynasty. It includes the brothers Andrea and Gabriele Vendramin, and Andrea's seven sons. Titian's painting has been described as, "one of the greatest group portraits in history". It balances youth and wisdom as well as demonstrating the power of this family and their public commitments to the Republic.

De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres) by the Renaissance astronomer Nicolaus Copernicus is published. The book presents the notion that the Earth revolves around the sun (a heliocentric theory) as opposed to Ptolemy's geocentric system (the Earth at the center of the universe), which had been widely accepted since ancient times.

Andreas Vesalius (Andries van Wesel) publishes the anatomy treatise De humani corporis fabrica (On the Workings of the Human Body).

Niccol Fontana Tartaglia publishes a translation of Euclid's Elements into Italian, the first into any modern European language.

Robert Recorde publishes The Grounde of Artes, teaching the Worke and Practise of Arithmeticke, both in whole numbers and fractions, one of the first printed elementary arithmetic textbooks in English and the first to cover algebra. It will go through around forty-five editions in the following century and a half. In this work, the use of the equal sign ("=") is first introduced into mathematical symbology.

Orto botanico di Pisa botanical garden established by Cosimo I de' Medici, Grand Duke of Tuscany, under the direction of Luca Ghini, who also creates the first herbarium.

William Turner's Avium praecipuarum, quarum apud Plinium et Aristotelem mentio est, brevis et succincta historia is published in Cologne, the first printed book devoted entirely to ornithology.

Georgius Agricola publishes De ortu et causis subterraneorum, laying the foundations of modern physical geology.

Painting by Agnolo Bronzino: Portrait of Eleanor of Toledo One of his most famous works, it is housed in the Uffizi Gallery of Florence, Italy and is considered one of the preeminent examples of Mannerist portraiture. The painting depicts Eleanor of Toledo, the wife of Cosimo I de' Medici, Grand Duke of Tuscany, sitting with her hand resting on the shoulder of one of her sons. This gesture, as well as the pomegranate motif on her dress, referred to her role as mother. Eleanor wears a heavily brocaded dress with black arabesques. In this pose, she is depicted as the ideal woman of the Renaissance.

Painting by Agnolo Bronzino: Venus, Cupid, Folly and Time (also called An Allegory of Venus and Cupid and A Triumph of Venus) is an allegorical painting by the Florentine artist Agnolo Bronzino. About 1546, Bronzino was commissioned to create a painting that has come to be known as Venus, Cupid, Folly, and Time. It displays the ambivalence, eroticism, and obscure imagery that are characteristic of the Mannerist period, and of Bronzino's master Pontormo.

Painting by Titian: Pope Paul III and His Grandsons was commissioned by the Farnese family and painted during Titian's visit to Rome between autumn 1545 and June 1546. It depicts the thorny relationship between Pope Paul III, born Alessandro Farnese, and two of his grandsons, Ottavio and Alessandro. Ottavio is shown in the act of kneeling, to his left; Alessandro, wearing a cardinal's dress, stands behind him to his right. The painting explores the effects of ageing and the manoeuvring behind succession; Paul was at the time in his late seventies and operating within an uncertain political climate as Charles V, Holy Roman Emperor, came into ascendancy. Paul was not a religious man; he viewed the papacy as a means to consolidate his family's position. He appointed Alessandro as cardinal against accusations of nepotism, fathered a number of illegitimate children, and spent large sums of church money collecting art and antiquities.

Thomas Phaer publishes The Boke of Chyldren, the first book on paediatrics written in English.

Gerolamo Cardano publishes his algebra text Ars Magna, including the first published solutions to cubic and quartic equations.

Michelangelo Buonarroti is made chief architect of St. Peter's Basilica.

Painting by Lucas Cranach the Elder : The Fountain of Youth The image is an oil painting on a lime wood board, executed in landscape format with the dimensions 186.1 x 120.6 centimeters. It shows on the bottom center, a winged serpent in flight from Cranach's workshop and the year 1546. It shows a fountain where older women but not men bathe, are rejuvenated and finally indulge in music, dance and good food. Cranach presents in this fairy tale image, in many details the real bathing culture of the Middle Ages, that based on the belief that certain baths might heal and rejuvenate. Sensual pleasures belonged to the bathroom now.

German minerologist Georgius Agricola publishes De Natura Fossilium (On the Nature of Fossils), the first published paleontological treatise.

Girolamo Fracastoro, in his De Contagione et Contagiosis Morbis (published in Venice), discusses the transmission of infectious diseases and gives the first description of typhus.

Edward VI becomes King of England and Ireland on 28 January and is crowned on 20 February at the age of 9. The son of Henry VIII and Jane Seymour, Edward was England's first monarch to be raised as a Protestant. During his reign, the realm was governed by a Regency Council because he never reached his majority.

Grand Prince Ivan the Terrible is crowned tsar of (All)Russia, thenceforth becoming the first Russian tsar.

Painting by Caterina van Hemessen: Self Portrait a small painting executed in oil on oak in 1548 by the Flemish Renaissance artist Caterina van Hemessen when she was 20 years old. The painting earned her a considerable reputation during her lifetime and is significant not only for being an early modern female portrait but also for representing an artist in the act of painting. This was very unusual for the time; although self-portraits were common, only a few, like those of Albrecht Dürer (1471–1528), showed the artist's social position and everyday life. Artists of the time rarely directly referred to, much less showed the tools of their profession. Hemessen's portrait is one of the earliest in the Northern European tradition to show a painter not only with a brush but also a palette and easel. She inscribed it with the words: "I Caterina van Hemessen have painted myself / 1548 / Her aged 20".

Battle of Uedahara: Firearms are used for the first time on the battlefield in Japan.

(no entry for this year)

Painting by unknown artist from the school of Fontainbleau: Diana the Huntress This may be an allegorical portrait of Diane de Poitiers, mistress of the French King Henry II. It reveals the profound impact of Italian Mannerist painters on French court art.

Painting by Pieter Aertsen: A Meat Stall with the Holy Family Giving Alms A large painting, it depicts a peasant market scene, with an abundance of meats and other foods. In the background, it shows a scene from the biblical theme of the flight into Egypt, where the Virgin Mary is seen stopped on the road, giving alms to the poor. Thus, although the painting seems to be at first sight an ordinary still life concentrating on foodstuffs, it is rich with symbolism; it in fact hides a symbolic religious meaning, and embodies a visual metaphor encouraging spiritual life. Aertsen made a name for himself during the 1550s painting scenes from everyday life in a naturalistic manner.

Publication of Erasmus Reinhold's ephemeris (collection of astronomical tables), the Tabulae Prutenicae, helping to disseminate Copernican methods of astronomical calculation.

Cornelius Gemma publishes the first illustration of a human tapeworm.

Thierry de Hery publishes La Méthode Curatoire de la Maladie Vénérienne, Vulgairement Appellée Grosse Vairolle, & de la Diuersité de Ses Symptomes, the first work in French on syphilis.

Mary Tudor becomes the first queen regnant of England and restores the Church of England under Papal authority.

Publication in Spain of Libro del Exercicio, considered the first book on the benefits of physical exercise for health.

Completion of the Church of Sant'Andrea in Via Flaminia, Rome, designed by Giacomo Barozzi da Vignola, the first church of the Italian Renaissance to have an elliptical dome.

Guillaume Rondelet publishes a volume on Mediterranean fish — De Piscibus — and includes the assertion that glossopetrae, or tongue stones, resemble shark teeth. The hypothesis attracts little attention.

Roman naturalist Ippolito Salviani publishes History of Aquatic Animals.

Venetian mathematician Giambattista Benedetti publishes two editions of Demonstratio proportionum motuum localium, developing his new doctrine of the speed of bodies in free fall.

Painting by Titian: Venus with a Mirror The pose of the Venus resembles the classical statues of the Venus de' Medici in Florence or the Capitoline Venus in Rome, which Titian may have seen when he wrote that was "learning from the marvelous ancient stones." The painting is said to celebrate the ideal beauty of the female form, or to be a critique of vanity, or perhaps both. It was copied by several later artists, including Peter Paul Rubens and Anthony van Dyck. Titian made a number of paintings of the same subject, but this is the believed to be the earliest and the only version to be entirely by the hand of Titian, without additions by his assistants. it remained in his house until his death in 1576. X-rays of the painting have revealed that Titian painted it over a double portrait which he had abandoned.

Pierre Belon publishes L'Histoire de la nature des oyseaux, a pioneering work in the comparative anatomy of birds.

The first edition of Alessio Piemontese's Secreti is published, listing about 350 medical recipes along with observations of nature. The publisher, Girolamo Ruscelli, will later claim authorship. Enormously popular, the book will total 104 editions through 1699.

Pomponio Algerio, 25-year-old radical theologian, is executed by boiling in oil as part of the Roman inquisition. After refusing to conform to Church doctrine, he was sentenced to prison and asked to reconsider his Lutheran beliefs. After a year behind bars, he still refused to reconsider. Because Venetian authorities would not consent to an execution, Pope Paul IV sent officials to extradite Pomponio to Rome. In Rome, on 21 August 1555, a monk from the brotherhood of St John the Beheaded visited Pomponio in his cell urging him to repent. If he repented, he would be strangled before burning. The 24-year-old student refused. One year later, on 22 August 1556, he was executed by civil authorities in the Piazza Navona, Rome. Maintaining his composure while he was boiled in oil, he stayed alive for 15 minutes before dying.

The Shaanxi earthquake in China, during the Ming Dynasty, is history's deadliest known earthquake, killing approximately 830,000 people.

Great Comet of 1556 becomes visible in Europe. The comet, known as C/1556 D1 in modern nomenclature, appears to have been seen in some places before the end of February; but it was not generally observed until the middle of the first week in March. Its apparent diameter was equal to half that of the Moon, and the tail resembled " the flame of a torch agitated by the wind," — an expression doubtless referring to the coruscations which are sometimes visible in the tails of comets

(no entry for this year)

Elizabeth Tudor becomes Queen Elizabeth I at age 25. Sometimes called The Virgin Queen, Gloriana or Good Queen Bess, the childless Elizabeth was the last monarch of the Tudor dynasty. Elizabeth was the daughter of Henry VIII and Anne Boleyn, his second wife, who was executed two-and-a-half years after Elizabeth's birth. Anne's marriage to Henry VIII was annulled, and Elizabeth was declared illegitimate. Elizabeth's reign is known as the Elizabethan era. The period is famous for the flourishing of English drama, led by playwrights such as William Shakespeare and Christopher Marlowe, and for the seafaring prowess of English adventurers such as Francis Drake.

Painting by Pieter Bruegel the Elder: Netherlandish Proverbs a 1559 oil-on-oak-panel painting that depicts a scene in which humans and, to a lesser extent, animals and objects, offer literal illustrations of Dutch language proverbs and idioms. Running themes in Bruegel's paintings are the absurdity, wickedness and foolishness of humans, and this is no exception. The painting's original title, The Blue Cloak or The Folly of the World, indicates that Bruegel's intent was not just to illustrate proverbs, but rather to catalog human folly. Many of the people depicted show the characteristic blank features that Bruegel used to portray fools.

Led by Don Tristán de Luna y Arellano, a Spanish missionary colony of 1500 men on thirteen ships arrives from Vera Cruz at Pensacola Bay, founding the first European settlement on the mainland United States. On September 19, the colony is decimated by a hurricane.

Jean Nicot, French ambassador to Portugal 1559–61, describes the medicinal properties of tobacco which he introduces in the form of snuff to the French court. The plant was also an instant success and soon many of the fashionable people of Paris began to use the plant, making Nicot a celebrity. The tobacco plant, Nicotiana, also a flowering garden plant, was named after him by Carl Linnaeus, as was nicotine.

Painting by Pieter Bruegel the Elder: Children's Games The children, who range in age from toddlers to adolescents, roll hoops, walk on stilts, spin hoops, ride hobby-horses, stage mock tournaments, play leap-frog and blind man's bluff, perform handstands, inflate pigs' bladders and play with dolls and other toys. They have also taken over the large building that dominates the square: it may be a town hall or some other important civic building, in this way emphasizing the moral that the adults who direct civic affairs are as children in the sight of God. This crowded scene is to some extent relieved by the landscape in the top left-hand corner; but even here children are bathing in the river and playing on its banks. The artist's intention for this work is more serious than simply to compile an illustrated encyclopaedia of children's games, though some eighty particular games have been identified. Bruegel shows the children absorbed in their games with the seriousness displayed by adults in their apparently more important pursuits. His moral is that in the mind of God children's games possess as much significance as the activities of their parents.

By winning the Battle of Okehazama, Oda Nobunaga becomes one of the pre-eminent warlords of Japan.

A total solar eclipse visible in Europe occurred on August 21. The prediction of this solar eclipse helped to inspire Tycho Brahe's (1546–1601) interest in astronomy at the age of 13. The announcement of this forthcoming eclipse in France caused many Frenchmen to panic, fighting one another to be next in line at the confessional. One beleaguered parish priest tried to calm the populace by announcing that since there were so many waiting to confess, a decision had been made to postpone the eclipse for two weeks.

(no entry for this year)

Painting by Pieter Bruegel the Elder: The Fall of the Rebel Angels The depiction of this subject is taken from a passage from the Book of Revelation (12, 2-9) and reveals the artist's profound debt to Hieronymous Bosch, especially in the grotesque figures of the fallen angels, shown as half-human, half-animal monsters. Together with Dulle Griet and The Triumph of Death, which have similar dimensions, it was probably painted for the same collector and destined to become part of a series.

Painting by Pieter Bruegel the Elder: The Triumph of Death The painting shows a panorama of an army of skeletons wreaking havoc across a blackened, desolate landscape. Fires burn in the distance, and the sea is littered with shipwrecks. A few leafless trees stud hills otherwise bare of vegetation; fish lie rotting on the shores of a corpse-choked pond.

Britain Joins Slave Trade. John Hawkins, the first Briton to take part in the slave trade, makes a huge profit hauling human cargo from Africa to Hispaniola.

Diego Gutiérrez and Hieronymus Cock published the map Americae Sive Quartae Orbis Partis Nova Et Exactissima Descriptio (A New and Most Exact Description of America or The Fourth Part of the World). The map (an ornate geographical map of the Americas) encompasses the eastern coast of North America, the entire Central and South America and parts of the western coasts of Europe and Africa. Americae Sive Quartae Orbis Partis Nova Et Exactissima Descriptio is the earliest scale wall map of the New World and the first to use the name "California".

Outbreak of bubonic plague — The Black Death — in London kills over 20,000. Plague epidemics ravaged London in 1563, 1593, 1603, 1625, 1636, and 1665, reducing its population by 10 to 30% during those years.

Galileo Galilei is born born in Pisa (then part of the Duchy of Florence), Italy, on 15 February 1564.

Painting by Pieter Bruegel the Elder: The Hunters in the Snow (Dutch: Jagers in de Sneeuw), also known as The Return of the Hunters, is a 1565 oil-on-wood painting by Flemish artist Pieter Bruegel the Elder. The Northern Renaissance work is one of a series of works, five of which still survive, that depict different times of the year. The Hunters in the Snow, and the series to which it belongs, are in the medieval and early Renaissance tradition of the Labours of the Months: depictions of various rural activities and work understood by a spectator in Breugel's time as representing the different months or times of the year.

Conrad Gessner publishes De Omni Rerum Fossilium ("A Book of Fossil Objects").

Antwerp doctor Samuel Quiccheberg publishes a description of the curiosity cabinet of Hans Jakob Fugger, including items from the animal, vegetable and mineral world.

College of Physicians of London empowered to carry out human dissections.

Roger Taverner writes his Arte of Surveyinge.

Painting by Giuseppe Arcimboldo: The Four Elements a series of paintings that were commissioned by Maximilian II, Holy Roman Emperor. The portraits display figures in profile formed by different animals or objects. Earth is represented by land animals, Air by birds, Water by marine creatures and Fire by burning wood and cannons. This series attempts to express harmony out of chaos with wild animals forming distinct faces. It also praises Maximilian, suggesting that he is a ruler who controls even the four primal elements.

Painting by Pieter Bruegel the Elder: The Wedding Dance The painting depicts 125 wedding guests. As was customary in the Renaissance period, the brides wore black and men wore codpieces. Voyeurism is depicted throughout the entire art work; dancing was disapproved of by the authorities and the church, and the painting can be seen as both a critique and comic depiction of a stereotypical oversexed, overindulgent, peasant class of the times.

Danish astronomer Tycho Brahe, while studying at the University of Rostock in Mecklenburg, loses part of his nose in a duel with fellow nobleman and relation Manderup Parsberg over a mathematical formula.

Mary, Queen of Scots, is imprisoned by Elizabeth I. Mary, the only surviving legitimate child of James V of Scotland, was six days old when her father died and she acceded to the throne. Mary had previously claimed Elizabeth's throne as her own and was considered the legitimate sovereign of England by many English Catholics, including participants in a rebellion known as the Rising of the North. Perceiving her as a threat, Elizabeth had her confined in various castles and manor houses in the interior of England. After eighteen and a half years in custody, Mary was found guilty of plotting to assassinate Elizabeth in 1586. She was beheaded the following year.

Paracelsus (Philippus Aureolus Theophrastus Bombastus von Hohenheim) publishes On the Miners' Sickness and Other Diseases of Miners, a pioneering example of occupational medicine.

Fabrizio Mordente publishes a single sheet treatise in Venice showing illustrations of his "proportional eight-pointed compass" which has two arms with cursors that allow the solution of problems in measuring the circumference, area and angles of a circle.

The Transylvanian Diet, under the patronage of the prince John Sigismund Zápolya, the former King of Hungary, inspired by the teachings of Ferenc Dávid, the founder of the Unitarian Church of Transylvania, promulgates the Edict of Torda, the first law of Freedom of religion and of conscience in the World.

The Mercator projection is first used in Gerardus Mercator's world map Nova et Aucta Orbis Terrae Descriptio ad Usum Navigantium Emendata.

Painting by Xu Wei: Grapes, Xu Wei (1521-1593) took the scholar-bureaucrats' style of painting to an extreme, painting with hard to control, extremely wet puddles of ink. A minor bureaucrat himself, and also a successful playwright, he suffered repeated emotional breakdowns after his powerful mentor was arrested, attempting suicide at least five times and unintentionally murdering his second wife, for which he himself was imprisoned. His style of painting and handwriting is seen as reflecting his wild mental state, and not often imitated but much admired. Grapes, c. 1570, Palace Museum, Beijing. [JLS]

Painting by Giuseppe Arcimboldo: Self Portrait

Pope Pius V issues Regnans in Excelsis, a papal bull excommunicating all who obeyed Elizabeth I and calling on all Roman Catholics to rebel against her.

London haberdasher Henry Billingsley makes the first translation of Euclid's Elements into English (from the Greek).

Giovanni Padovani publishes a detailed treatise on the construction of sundials, Opus de compositione et usu multiformium horologiorum solarium, in Venice.

Painting by François Clouet: A Lady in Her Bath The picture is in the National Gallery of Art, Washington DC. It is one of only three paintings signed by Clouet. The bather is unknown. It is possible that she is Diane de Poitiers, mistress of King Henry II of France. Scholar Roger Trinquet suggested in 1966 that the lady is Mary Queen of Scots. The lady's face resembles other portraits of Mary, especially a drawing by Clouet depicting Mary in mourning. Trinquet believes the painting was intended as a satire for a Huguenot patron. The painting set a fashion for portraits of bathers.

The Ottoman Empire suffered a major defeat at the Battle of Lepanto, a naval battle fought against a coalition of Christian states led by the Holy League. Despite the loss, the Ottoman navy remained a dominant force in the Mediterranean.

European doctors start publishing works on healthy properties of the tobacco plant, claiming it can cure a myriad of diseases, from toothache to lockjaw and cancer.

The last Inca leader Tupak Amaru apprehended by Spanish conquistadores at Vilcabamba, Peru, and executed in Cuzco.

A supernova, now designated as SN 1572, is first observed in the constellation Cassiopeia by Cornelius Gemma. Tycho Brahe, who notes it two days later, will use it to challenge the prevailing view that stars do not change.

Girolamo Mercuriale of Forl (Italy) writes the work De morbis cutaneis ("On the diseases of the skin"), the first scientific tract on dermatology.

Painting by Paolo Veronese: The Feast in the House of Levi is one of the largest canvases of the 16th century, measuring 555 cm 1,280 cm (18.21 ft 41.99 ft). It is now in the Gallerie dell'Accademia in Venice. It was painted by Veronese for the rear wall of the refectory of the Basilica di Santi Giovanni e Paolo, a Dominican friary, as a Last Supper, to replace an earlier work by Titian destroyed in the fire of 1571. However, the painting led to an investigation by the Roman Catholic Inquisition. Veronese was called to answer for irreverence and indecorum, and the serious offence of heresy was mentioned. He was asked to explain why the painting contained "buffoons, drunken Germans, dwarfs and other such scurrilities" as well as extravagant costumes and settings, in what is indeed a fantasy version of a Venetian patrician feast. Veronese was told that he must change his painting within a three-month period; instead, he simply changed the title to The Feast in the House of Levi, still an episode from the Gospels, but less doctrinally central, and one in which the Gospels specified "sinners" as present. After this, no more was said.

French surgeon Ambroise Paré publishes the first edition of Des Monstres et Prodiges. At this time, surgeons are not regarded as real doctors, and Paré is roundly criticized for discussing larger issues of medicine and philosophy, considered well beyond his purview.

In Rome (Italy), in the river Tiber between the two bridges, the monument base is discovered for a statue of Simon Paeter (or Simon the Sorcerer, the "Magus of Samaria"), with inscription "Simoni Deo Sancto" (translation: "To Simon the Holy God").

(no entry for this year)

English navigator Martin Frobisher sights Greenland.

The Great Comet of 1577 (official designation: C/1577 V1) was a comet that passed close to Earth during the year 1577 AD. It was viewed by people all over Europe, including the famous Danish astronomer Tycho Brahe and Turkish astronomer Taqi ad-Din. From his observations of the comet, Brahe was able to discover that comets and similar objects travel above the Earth's atmosphere. The best fit using JPL Horizons suggests that the comet is currently about 320 AU from the Sun (based on 24 of Brahe's observations spanning 74 days from 13 November 1577 to 26 January 1578).

Painting by El Greco: Lady in a Fur Wrap against a dark background a young woman gazes at the viewer, dressed in a fur robe covering the rest of her dress. A fine transparent veil covers her head, and vaguely a neckace can be seen that she is wearing underneath it. The robe falls into darkness behind its fur lining, that may be ermine or lynx. The painting is unsigned but has traditionally been attributed to El Greco since it was in the collection of French king Louis Philippe I and hung at the Louvre.

Li Shizhen completes the first draft of the materia medica Bencao Gangmu.

English seaman William Bourne publishes a manual, Inventions or Devises, Very Necessary for all Generalles and Captaines, as wel by Sea as by Land, including an early theoretical description of a submarine.

Francis Drake, during his circumnavigation of the world, lands in what is now California, which he claims for Queen Elizabeth I of England as Nova Albion.

Hieronymus Fabricius discovers the membranous folds that serve as valves in the veins.

Francis Drake in the Golden Hind sails into Plymouth having completed the second circumnavigation of the world, westabout, begun in 1577.

Spain unifies with Portugal under Philip II. The struggle for the throne of Portugal ends the Portuguese Empire. The Spanish and Portuguese crowns are united for 60 years, i.e. until 1640.

Slaves in Florida Spanish residents in St. Augustine, the first permanent settlement in Florida, import African slaves.

Pope Gregory XIII issues papal bull Inter Gravissimas, thereby establishing the The Gregorian Calendar. The last day of the Julian calendar was Thursday, 4 October 1582 and this was followed by the first day of the Gregorian calendar, Friday, 15 October 1582.

Andrea Cesalpino publishes De Plantis, ordering plants in families. In his works he classified plants according to their fruits and seeds, rather than alphabetically or by medicinal properties. In 1555, he succeeded Luca Ghini as director of the botanical garden in Pisa.

Agostino Michele publishes On the Magnitude of the Water and of the Earth, calling himself "determined to follow Aristotle and Plato only as much as Moses and Christ allow," and arguing that huge subterranean reservoirs made the universal deluge of Noah's flood possible.

Thomas Fincke's Geometria rotundi is published, introducing the terms tangent and secant for trigonometric functions.

Walter Raleigh sends Philip Amadas and Arthur Barlowe to explore the Outer Banks of Virginia (now North Carolina), with a view to establishing an English colony; they locate Roanoke Island.

Michele Mercati establishes one of the first mineralogical curiosity cabinets in Europe. Mercati was a physician who was superintendent of the Vatican Botanical Garden under Popes Pius V, Gregory XIII, Sixtus V, and Clement VIII. He was one of the first scholars to recognise prehistoric stone tools as human-made rather than natural or mythologically created thunderstones.

Giordano Bruno uses Fabrizio Mordente's "proportional eight-pointed compass" to refute Aristotle's hypothesis on the incommensurability of infinitesimals, thus confirming the existence of the "minimum" which lays the basis of his own atomic theory. Bruno publishes his proofs as Figuratio Aristotelici Physici auditus.

Simon Stevin publishes De Thiende, introducing a form of decimal fraction.

Jacques Dal champs publishes Historia generalis plantarum in Lyon, describing 2,731 plants, a record number for this time.

Galileo publishes La Billancetta, describing an accurate balance to weigh objects in air or water.

Mary, Queen of Scots, is executed by Elizabeth I.

Ferdinando I de Medici, Grand Duke of Tuscany, appoints Galileo to the professorship of mathematics at the University of Pisa.

Pietro Cataldi discovers the sixth and seventh Mersenne primes by this year.

(no entry for this year)

At the Siege of Odawara the Go-Hojo clan surrendered to Toyotomi Hideyoshi, unifying Japan.

José de Acosta publishes Natural and Moral History of the Indies describing such weird creatures as iguanas.

Glass lenses are developed in the Netherlands and used for the first time in microscopes and telescopes.

Painting by Giuseppe Arcimboldo: Vertumnus The painting is Arcimboldo's most famous work and is a portrait of the Holy Roman Emperor Rudolf II re-imagined as Vertumnus, the Roman god of metamorphoses in nature and life; the fruits and vegetables symbolize the abundance of the Golden Age that has returned under the Emperor's rule. Looking from the distance, Arcimboldo's whimsical portraits might look like portraits, but they are assembled using vegetables, books, plants, kitchen utensils, oils, fruits, sea creatures, animals and tree roots, each individual object chosen to give the impression of anatomical trait of a human face. The portrait of the emperor is created out of plants — flowers and fruits from all seasons: gourds, pears, apples, cherries, grapes, wheat, artichokes, peapods, corns, onions, artichoke, cabbage foils, cherries, chestnuts, figs, mulberries, grapes, plums, pomegranates, various pumpkins and olives. Rudolf's portrait is composed of fruit, vegetables and flowers were to symbolize the perfect balance and harmony with nature that his reign represented. These portraits were an expression of the Renaissance mind's fascination with riddles, puzzles, and the bizarre.

Girolamo Porro produces a plan for a botanical garden at Padua, arguably expecting to assemble all the world's plants. Over the next century, well- traveled naturalists will abandon such goals as unrealistic.

François Viète publishes In Artem Analyticem Isagoge, introducing the new algebra with innovative use of letters as parameters in equations.

Painting by Caravaggio: Boy Peeling Fruit This is the earliest known work by Caravaggio, painted soon after his arrival in Rome from his native Milan in mid 1592. The fruit being peeled by the boy is something of a mystery. Sources indicate it may be a pear, which is probably correct but has been questioned; it may be a nectarine or plum, several of which lie on the table, but these are not usually peeled; some have suggested a bergamot, a pear-shaped citrus fruit grown in Italy, but others object that the bergamot is sour and practically inedible. Seen as a simple genre painting, it differs from most in that the boy is not 'rusticated,' that is, he is depicted as clean and well-dressed instead of as a 'cute' ragamuffin. An allegoric meaning behind the painting is plausible, given the complex Renaissance symbology of fruit. Caravaggio scholar John T. Spike has recently suggested that the boy demonstrates resistance to temptation by ignoring the sweeter fruits (fruits of sin) in favour of the bergamot, but no specific reading is widely accepted.

(no entry for this year)

Painting by Caravaggio: Cardsharps The work represents an important milestone for Caravaggio. He painted it when he was attempting an independent career after leaving the workshop of the Cavaliere Giuseppe Cesari d'Arpino, for whom he had been painting "flowers and fruit", finishing the details for the Cavaliere's mass-produced (and massive) output. Caravaggio left Arpino's workshop in January 1594 and began selling works through the dealer Costantino, with the assistance of Prospero Orsi, an established painter of Mannerist grotesques (masks, monsters, etc.). Orsi introduced Caravaggio to his extensive network of contacts in the world of collectors and patrons. Composition The painting shows an expensively-dressed but unworldly boy playing cards with another boy. The second boy, a cardsharp, has extra cards tucked in his belt behind his back, out of sight of the mark but not the viewer, and a sinister older man is peering over the dupe's shoulder and signaling to his young accomplice. The second boy has a dagger handy at his side, and violence is not far away.

Painting by unknown artist: Gabrielle d'Estrées et une de soeurs The painting now hangs at the Louvre in Paris and is usually thought to be the work of a painter from the Fontainebleau School. The painting portrays Gabrielle d'Estrées, mistress of King Henry IV of France, sitting nude in a bath, holding a ring. Her sister sits nude beside her and pinches her right nipple. The nipple-pinching gesture is often interpreted as a symbolic announcement that Gabrielle is pregnant with Henry's child, César de Bourbon. According to the Louvre's website: "The oddly affectionate way in which the sister is pinching Gabrielle d'Estrées' right breast has often been taken as symbolizing the latter's pregnancy with the illegitimate child of Henry IV. This interpretation would seem to be confirmed by the scene of the young woman sewing — perhaps preparing a layette for the coming child — in the background." The ring that Gabrielle holds is said to be Henry's coronation ring, which he supposedly gave to her as a token of his love shortly before she died.

The tulip bulbs planted by Carolus Clusius in the Hortus Botanicus Leiden, Holland, first flower.

Francis Bacon pens Gesta Grayorum, a staged debate related to science.

Bevis Bulmer sets up a system at Blackfriars, London, for pumping a public water supply.

A Spanish expedition led by lvaro de Menda a de Neira makes the first European landing in Polynesia, on the Marquesas Islands.

Bartholomaeus Pitiscus publishes Trigonometria: sive de solutione triangulorum tractatus brevis et perspicuus in Heidelberg, introducing the term trigonometry to Western European languages.

Painting by El Greco: View of Toledo is one of the two surviving landscapes painted by El Greco. The other, View and Plan of Toledo lies at Museo Del Greco, Toledo, Spain. View of Toledo is among the best known depictions of the sky in Western art, along with Vincent van Gogh's The Starry Night and the landscapes of William Turner and Monet, among others. Most notable is the distinct color contrast between the dark and somber skies above and the glowing green hills below. While influenced by the Mannerist style, El Greco's expressive handling of color and form is without parallel in the history of art. In this painting, he takes liberties with the actual layout of Toledo insofar as certain building locations are re-arranged. However, the location of the Castle of San Servando, on the right, is accurately depicted. El Greco's signature appears in the lower-right corner.

Johannes Kepler's Mysterium Cosmographicum is the first published defense of the Copernican (heliocentric) system of planetary motion. This book explains Kepler's cosmological theory, based on the Copernican system, in which the five Pythagorean regular polyhedra dictate the structure of the universe and reflect God's plan through geometry. This was the first attempt since Copernicus to say that the theory of heliocentrism is physically true.

Abraham Ortelius, in the last edition of his Thesaurus geographicus, considers the possibility of continental drift.

Painting by Caravaggio: Medusa Caravaggio painted two versions of Medusa, the first in 1596 and the other presumably in 1597. The first version is also known as Murtula, by the name of the poet who wrote about it, Gaspare Murtola (d. 1624): "Flee, for if your eyes are petrified in amazement, she will turn you to stone." It measures 48 by 55 cm and is signed Michel A F (Latin: Michel Angelo Fecit), "Michel Angelo made [this]", Michelangelo being Caravaggio's first name. This work is privately owned. The second version, shown here, is slightly bigger (60 × 55 cm) and is not signed; it is held in the Uffizi Gallery in Florence.

Painting by Michelangelo Merisi da Caravaggio: Jupiter, Neptune and Pluto According to an early biographer, one of Caravaggio's aims was to discredit critics who claimed that he had no grasp of perspective. The three figures demonstrate the most dramatic foreshortening imaginable. They contradict claims that Caravaggio always painted from live models. The artist seems to have used his own face for all three gods. The painting was done for Caravaggio's patron Cardinal Francesco Maria Del Monte and painted on the ceiling of the cardinal's garden casino of his country estate, which later became known as the Villa Ludovisi. The cardinal had a keen interest alchemy. Caravaggio has painted an allegory of the alchemical triad of Paracelsus: Jupiter stands for sulphur and air, Neptune for mercury and water, and Pluto for salt and earth. Each figure is identified by his beast: Jupiter by the eagle, Neptune by the hippocamp, and Pluto by the three-headed dog Cerberus. Jupiter is reaching out to move the celestial sphere in which the Sun revolves around the Earth. Galileo was a friend of Del Monte but had yet to make his mark on cosmology.

Andreas Libavius's chemistry textbook Alchemia published. Libavius was a staunch believer in chrysopoeia, or the ability to transmute a base metal into gold. This viewpoint was a matter of much debate for alchemists of the time and he defended it in several of his writings. Though he did discover several new chemical processes, he tended to be more of a theoretician and he leaned toward traditional Aristotelianism rather than Paracelsian alchemy.

Tycho Brahe's star catalogue Astronomiae instauratae mechanica, listing the positions of 1,004 stars, is published.

Jean Bauhin, a former student of Conrad Gesner's, publishes a monograph of the medicinal waters and surrounding environment of the German fountains at Boll, the first publication of a complete set of fossils from a specific location.

After being separated from the main Second Dutch Expedition to Indonesia fleet of Admiral Wybrand Van Warwyck, three ships under Jacob Cornelisz. van Neck land on the island which they name Mauritius and sight the dodo bird (Raphus cucullatus); it will become extinct around 1681.

Painting by Caravaggio: Basket of Fruit a still life painting which hangs in the Biblioteca Ambrosiana (Ambrosian Library), Milan. It shows a wicker basket perched on the edge of a ledge. The basket contains a selection of summer fruit. Much has been made of the worm-eaten, insect-predated, and generally less than perfect condition of the fruit. In line with the culture of the age, the general theme appears to revolve about the fading beauty, and the natural decaying of all things. Scholars also describe the basket of fruit as a metaphor of the Church. A recent X-ray study revealed that it was painted on an already used canvas painted with grotesques in the style of Caravaggio's friend Prospero Orsi, who helped the artist in his first breakthrough into the circles of collectors such as his first patron, Cardinal Francesco Maria Del Monte, around 1594/1595, and who remained close to him for many years thereafter.

Painting by Caravaggio: David and Goliath The David and Goliath in the Prado was painted in the early part of the artist's career, while he was a member of the household of Cardinal Francesco Maria Del Monte. It shows the Biblical David as a young boy (in accordance with the Bible story) fastening the head of the champion of the Philistines, the giant Goliath, by the hair. The light catches on David's leg, arm and flank, on the massive shoulders from which Goliath's head has been severed, and on the head itself, but everything else is dark. Even David's face is almost invisible in the shadows. A wound on Goliath's forehead shows where he has been felled by the stone from David's sling. The overwhelming impression is of some action intensely personal and private — no triumph, no armies, no victory.

Painting by Caravaggio: Judith Beheading Holofernes The widow Judith first charms the Assyrian general Holofernes, then decapitates him in his tent. The painting was rediscovered in 1950 and is part of the collection of the Galleria Nazionale d'Arte Antica in Rome. The deutero-canonical Book of Judith tells how Judith served her people by seducing and pleasuring Holofernes, the Assyrian general. Judith gets Holofernes drunk, then seizes her sword and slays him: "Approaching to his bed, she took hold of the hair of his head." (Judith, 13:7-8). Caravaggio's approach was, typically, to choose the moment of greatest dramatic impact, the moment of the decapitation itself. The figures are set out in a shallow stage, theatrically lit from the side, isolated against the inky, black background. Judith and her maid Abra stand to the right, partially over Holofernes, who is vulnerable on his back. X-rays have revealed that Caravaggio adjusted the placement of Holofernes' head as he proceeded, separating it slightly from the torso and moving it slightly to the right. The faces of the three characters demonstrate his mastery of emotion, Judith in particular showing in her face a mix of determination and repulsion. Artemisia Gentileschi and others were deeply influenced by this work, and even surpassed Caravaggio's physical realism, but it has been argued that none matched his capture of Judith's psychological ambivalence.

Lawyer Carlo Ruini's Anatomia del cavallo is published posthumously in Venice. This anatomy of the horse is the first published of any non-human animal.

Ferrante Imperato publishes Dell'Historia Naturale (Natural History) attempting to catalog all of nature's animal, vegetable and mineral forms. He illustrated the book with his own cabinet of curiosities displayed at Palazzo Gravina in Naples. The engraving became the first pictorial representation of a Renaissance humanist's displayed natural history research collection.

Painting by Juan Sánchez Cotán: Still Life With Quince, Cabbage, Melon, and Cucumber

Battle of Sekigahara in Japan. End of the Warring States period and beginning of the Edo period.

William Gilbert, court physician to Elizabeth I, describes the Earth's magnetism in De Magnete.

Painting by Caravaggio: Crucifixion of Saint Peter was painted for the Cerasi Chapel of Santa Maria del Popolo in Rome. Across the chapel is a second Caravaggio work depicting the Conversion of Saint Paul on the Road to Damascus (1601). On the altar between the two is an Assumption of the Virgin Mary by Annibale Carracci. The painting depicts the martyrdom of St. Peter by crucifixion Peter asked that his cross be inverted so as not to imitate his God, Jesus Christ, hence he is depicted upside down. The large canvas shows Ancient Romans, their faces shielded, struggling to erect the cross of the elderly but muscular apostle. Peter is heavier than his aged body would suggest, and his lifting requires the efforts of three men, as if the crime they perpetrate already weighs on them.

Painting by Caravaggio: The Conversion of St. Paul records the moment when Saul of Tarsus, on his way to Damascus to annihilate the Christian community there, is struck blind by a brilliant light and hears the voice of Christ saying, "Saul, Saul, why persecutest thou me?...And they that were with me saw indeed the light, and were afraid, but they heard not the voice..." (Acts 22:6-11). Elsewhere Paul claims to have seen Christ during the vision, and it is on this basis that he grounds his claim be recognised as an Apostle: "Have I not seen Jesus Christ our Lord?" (I Corinthians 9:1). Caravaggio biographer Helen Langdon describes style of Conversion as "an odd blend of Raphael and clumsy rustic realism," but notes how the composition, with its jagged shapes and irrational light which licks out details for their dramatic impact, creates "a sense of crisis and dislocation [in which] Christ disrupts the mundane world."

The Dutch East India Company (VOC) is established by merging competing Dutch trading companies.[4] Its success contributes to the Dutch Golden Age.

Ulisse Aldrovandi publishes De Animalibus Insectis.

Painting by Caravaggio: Sacrifice of Isaac The Sacrifice of Isaac is the title of two paintings from c. 1598 - 1603 depicting the sacrifice of Isaac. The paintings could be painted by the Italian master Caravaggio (1571 1610) but there is also strong evidence that they may have been the work of Bartolomeo Cavarozzi, a talented early member of the Caravaggio following who is known to have been in Spain about 1617-1619. The second Sacrifice of Isaac is housed in the Uffizi Gallery, Florence. According to the early biographer Giovanni Bellori, Caravaggio painted a version of this subject for Cardinal Maffeo Barberini, the future Pope Urban VIII, and a series of payments totalling one hundred scudi were made to the artist by Barberini between May 1603 and January 1604. Caravaggio had previously painted a Portrait of Maffeo Barberini, which presumably pleased the cardinal enough for him to commission this second painting. Isaac has been identified as Cecco Boneri, who appeared as Caravaggio's model in several other pictures. Recent X-ray analysis showed that Caravaggio used Cecco also for the angel, and later modified the profile and the hair to hide the resemblance.

Painting by Peter Paul Rubens: The Duke of Lerma on Horseback. When he visited the Spanish Court for the first time, Rubens (still in his twenties) used this picture to display his talents and to make his mark. It has already many elements of his mature Baroque style, which would have been novel and striking to his viewers. The way in which the horse seems to surge forward towards the spectator - an effect engineered by the low viewpoint and lack of balancing elements in the foreground, and recalling the techniques of Caravaggio - was spectacular, and broke with the traditional profile of equestrian portraits. Other devices used to enhance the spectacle were the eccentric colouring, the tempestuous lighting, and the rather disquieting energy of the horse's hair and the trees' foliage.

Tokugawa Ieyasu takes the title of Shogun, establishing the Tokugawa Shogunate. This begins the Edo period, which will last until 1869.

Prince Federico Cesi establishes the Lincean, or Lyncean, Academy in Rome, perhaps the first scientific academy of the modern era.

Painting by Caravaggio: The Entombment of Christ, one of the artist's most admired altarpieces, was created for the second chapel on the right in Santa Maria in Vallicella (the Chiesa Nuova), a church built for the Oratory of Saint Philip Neri. A copy of the painting is now in the chapel, and the original is in the Vatican Pinacoteca. The painting has been copied by artists as diverse as Rubens, Fragonard, G ricault and C zanne.

King James I condemns tobacco in his treatise A Counterblast to Tobacco.

Johann Carolus of Germany publishes the 'Relation', the first newspaper.

Tokugawa Ieyasu passes the title of Shogun to his son, Tokugawa Hidetada, and "retires" to Sunpu.

The German mathematician and astronomer Johannes Kepler establishes his three Laws of Planetary Motion, mathematical laws that describe the motion of planets in the Solar System, including the ground-breaking idea that the planets follow elliptical, not circular, paths around the Sun. Newton later used them to deduce his own Laws of Motion and his Law of Universal Gravitation.

Captain Willem Janszoon and his crew aboard the Dutch East India Company ship Duyfken becomes the first recorded Europeans to sight and make landfall in Australia.

Jamestown, Virginia, is settled as what would become the first permanent English colony in North America.

Quebec City founded by Samuel de Champlain in New France (present-day Canada).

Galileo constructs the first telescope.

Painting by Dong Qichang: River and Mountains on a Clear Autumn Day. Dong Qichang (1555–1636), high ranking court official, develops a pictorial scheme for landscape painting composed of limited, repeated component parts, strong and often tilted ground planes, and regulated brushstrokes that becomes high influential over the next two centuries of Chinese landscape painting. He propounded a view of history (inaccurate in many ways) that suggests a long tradition of lofty amateur artists of the elite class of court bureaucrats had favored his more calligraphic mode of painting practice, in contrast to small-minded professional painters who paid more attention to representational accuracy and detail. European influence in his work, via Jesuits at the Ming dynasty court, is possible. [JLS]

The Italian mathematician and physicist Galileo Galilei develops an astronomical telescope powerful enough to indentify moons orbiting Jupiter, sunspots on the Sun and the different phases of Venus, all of which are instrumental in convincing the scientific community of the day that the heliocentric Copernican model of the Solar System is superior to the geocentric Ptolemiac model.

King James Bible is first published. The KJV is an English translation of the Christian Bible for the Church of England begun in 1604 and completed in 1611. The books of the King James Version include the 39 books of the Old Testament, an intertestamental section containing 14 books of the Apocrypha (most of which correspond to books in the Vulgate Deuterocanon adhered to by Roman Catholics), and the 27 books of the New Testament. It was first printed by the King's Printer Robert Barker and was the third translation into English approved by the English Church authorities.

The first commercial tobacco crop is raised in Jamestown, Virginia.

The first flintlock musket likely created for Louis XIII of France by gunsmith Marin Bourgeois.

Shakespeare's last play, Henry VIII, is published.

Painting by Juan Bautista Maíno: The Adoration of the Shepherds

Richard Braithwaite coined the phrase ‘computer’.

Tobacco shops open across Britain, selling the Virginia blend tobacco.

Logarithms presented by John Napier in his book Mirifici Logarithmorum Canonis Descriptio (A Description of the Wonderful Law of Logarithms), which contained fifty-seven pages of explanatory matter and ninety pages of tables of numbers related to natural logarithms (see Napierian logarithm). The book also has an excellent discussion of theorems in spherical trigonometry, usually known as Napier's Rules of Circular Parts.

(no entry for this year)

Painting by Frans Hals: Banquet of the Officers of the St. George Civic Guard Company of Haarlem is considered one of the main attractions of the Frans Hals Museum. Hals was in his thirties when he painted this piece, and was far from established as a portrait painter. To be safe, he based most of his design on the painting of his predecessor, Cornelis Cornelisz van Haarlem, who painted the same militia company in 1599. Given a nearly impossible task, namely to complete his assignment but to add theatrical elements at the same time, Hals must have spent lots of time judging the politics of the group. He knew these men well as he served in the St. Joris militia himself from 1612-1615. In his painting, he indicates the political position of each man in the group as well as managing to give each a characteristic portrait. In Cornelis van Haarlem's piece the figures seem crammed into a tight space, and each face seems to have a similar expression. In Hals' group, an illusion of space and relaxed conversation is given. Officers were selected by the council of Haarlem to serve for three years, and this group had just finished their tenure and celebrated their end of service with a portrait. The man with the orange sash heads the table and the second in command is on his right. The three ensigns stand and the servant is carrying a plate.

Death of retired Shogun Tokugawa Ieyasu.

Fabio Colonna publishes "Dissertation on Tongue Stones" arguing that "nobody is so stupid" that he or she will not agree that tongue stones are really shark teeth. Like Rondelet several decades earlier, he attracts little attention.

Italian philosopher Lucilio Vanini suggests that humans descended from apes. In 1618 Vanini is arrested and, after a prolonged trial, condemned to have his tongue cut out, to be strangled at the stake and to have his body burned to ashes. The sentence was executed on 9 February 1619.

Nikko Tosho-gu Shrine, dedicated to Tokugawa Ieyasu, the founder of the Tokugawa shogunate, is built. Ieyasu is enshrined there, where his remains are also entombed. During the Edo period, the Tokugawa shogunate carried out stately processions from Edo to the Nikko Tosho-gu. The shrine's annual spring and autumn festivals reenact these occasions, and are known as processions of a thousand warriors. Five structures at Nikko Tosho-gu are categorized as National Treasures of Japan, and three more as Important Cultural Properties. The stable of the shrine's sacred horses bears a carving of the three wise monkeys, who hear, speak and see no evil, a traditional symbol in Chinese and Japanese culture.

Beginning of the Thirty Years War..

The Manchus start invading China. Their conquest eventually topples the Ming Dynasty.

Twenty slaves in Virginia Africans brought to Jamestown are the first slaves imported into Britain's North American colonies. Like indentured servants, they were probably freed after a fixed period of service.

Painting by Artemesia Gentileschi: Judith Beheading Holofernes shows the scene of Judith beheading Holofernes, common in art since the early Renaissance. The subject represents an episode (from the apocryphal Book of Judith in the Old Testament) which recounts the assassination of the Assyrian general Holofernes by the Israelite heroine Judith. The painting shows the moment when Judith, helped by her maidservant, beheads the general after he has fallen asleep drunk. The painting is relentlessly physical, from the wide spurts of blood to the energy of the two women as they perform the act. Although the painting depicts a classic scene from the Bible, Gentileschi drew herself as Judith and her mentor Agostino Tassi, who was tried in court for her rape, as Holofernes. Gentileschi's biographer Mary Garrard famously proposed an autobiographical reading of the painting, stating that it functions as "a cathartic expression of the artist's private, and perhaps repressed, rage."

The Mayflower arrives at Cape Cod bearing Brownist Pilgrims.

English philosopher Francis Bacon publishes Novum Organum (New Instrument), which seeks to add inductive reasoning to the tools of deductive inquiry that had been outlined in Aristotle's treatises of logic known as the Organum.

(no entry for this year)

Jamestown massacre: Algonquian natives kill 347 English settlers outside Jamestown, Virginia (one-third of the colony's population) and burn the Henricus settlement.

Slide Rule invented by William Oughtred

The third English dictionary, English Dictionarie, and the first to be called a dictionary is published by Henry Cockeram, listing difficult words with definitions.

Gaspard Bauhin publishes Pinax Theatri Botanici describing some 6,000 plants.

Francis Bacon develops a method of steganography that used an underlying binary code for the letters of the alphabet.

Wilhelm Schickard designs a calculating machine.

Painting by Frans Hals: The Laughing Cavalier has been described as "one of the most brilliant of all Baroque portraits". The title is an invention of the Victorian public and press, dating from its exhibition in the opening display at the Bethnal Green Museum in 1872 75, just after its arrival in England, after which it was regularly reproduced as a print, and became among of the best known old master paintings in Britain. The unknown subject is in fact not laughing, but can be said to have an enigmatic smile, much amplified by his upturned moustache.

Galileo presents to Cesi, founder of the Lincean Academy, a "little eyeglass" (a microscope). The invention will enable the Linceans to study natural objects with unprecedented precision. They will start with bees, then move on to flies and dust mites.

English settlers occupy the islands of Barbados and St. Kitts.

Pieter Jansz Schaghen writes to the States General of the Dutch Republic announcing the purchase of Manhattan from the Native Americans.

The Dutch West India Company imports 11 black male slaves into the New Netherlands.

Painting by Chen Hongshou: Self Portrait. After the fall of the Ming dynasty in 1644-45 to the Manchu Qing, many artists of China's bureaucratic elite went into deep retirement, out of loyalty to the fallen government, and their loyalty or regret was sometimes expressed in subtle terms in their works. Chen Hongshou (1598-1652) had lived a life tinged with alcohol and sexual dissipation before entering the government just prior to its fall. Afterward, he committed himself to a Buddhist monastery and living a life of discipline and regret. Even his paintings are distinctive for their expression of distortion and irony. Self-portrait from an album of 11 leaves, c. 1633, Metropolitan Museum of Art. [JLS]

Aurochs go extinct.

Painting by Nicolas Poussin: The Martyrdom of St. Erasmus

William Harvey publishes Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus (Latin for "An Anatomical Exercise on the Motion of the Heart and Blood in Living Beings"). The book established the circulation of the blood and was a landmark in the history of physiology. Just as important as its substance was its method. Harvey combined observations, experiments, measurements, and hypotheses in extraordinary fashion to arrive at his doctrine. His work is a model of its kind. It had an immediate and far-reaching influence on Harvey's contemporaries. In the book, Harvey investigated the effect of ligatures on blood flow. The book also argued that blood was pumped around the body in a "double circulation", where after being returned to the heart, it is recirculated in a closed system to the lungs and back to the heart, where it is returned to the main circulation.

English troops capture Qu bec.

Painting by Jos de Ribera: Martyrdom of St. Bartholomew

Mount Vesuvius erupts.

Painting by Rembrandt: The Anatomy Lesson of Dr. Nicolaes Tulp shows Dr. Tulp explaining the musculature of the arm to medical professionals. Some of the spectators are various doctors who paid commissions to be included in the painting. The painting is signed in the top-left hand corner Rembrandt. f[ecit] 1632. This may be the first instance of Rembrandt signing a painting with his forename (in its original form) as opposed to the monogramme RHL (Rembrandt Harmenszoon of Leiden), and is thus a sign of his growing artistic confidence.

Charles I of England grants a charter to Cecilius Calvert, second Lord Baltimore, for colony in Maryland

Galileo Galilei first describes the Principle of Relativity, the idea that the fundamental laws of physics are the same in all inertial frames and that, purely by observing the outcome of mechanical experiments, one cannot distinguish a state of rest from a state of constant velocity.

Under compulsion, Galileo rejects the Copernican system.

The French philosopher Ren Descartes outlines a model of a static, infinite universe made up of tiny corpuscles of matter, a viewpoint not dissimilar to ancient Greek atomism. Descartes universe shares many elements of Sir Isaac Newton s later model, although Descartes vacuum of space is not empty but composed of huge swirling whirlpools of ethereal or fine matter, producing what would later be called gravitational effects.

(no entry for this year)

Painting by Adriaen Brouwer: Tavern Scene. Brouwer left a small body of work amounting to about 60 works. Just a few of his works are signed, while none is dated. As Brouwer was widely copied, imitated and followed in his time, attributions of work to Brouwer are sometimes uncertain or contested. For instance, the The smoker (Louvre) showing a man exhaling smoke while holding a bottle of liquor was attributed for a long time to Brouwer, but is now given to Brouwer's follower and, possibly, pupil Joos van Craesbeeck. The principal subject matter of Brouwer are genre scenes with peasants, soldiers and other 'lower class' individuals engaging in drinking, smoking, card or dice playing, fights etc. often set in taverns or rural settings. Brouwer also contributed to the development of the genre of tronies, i.e. head or facial studies, which investigate varieties of expression.

Painting by Diego Velázquez: The Surrender of Breda was inspired by Velázquez's visit to Italy with Ambrogio Spinola, the Genoese general who conquered Breda on June 5, 1625. It is considered one of Velázquez's best works. Jan Morris has called it "one of the most Spanish of all pictures".

Painting by Frans Hals: Lucas de Clercq, a Dutch cloth merchant known today for his and his wife's pendant marriage portraits painted by Frans Hals.

Painting by Guido Reni: The Archangel Michael vanquishing Satan

Painting by Justus Sustermans: Portrait of Galileo Galilei. Justus Sustermans was a Flemish painter working in the Baroque style. He was born in Antwerp and died in Florence. Sustermans is chiefly notable for his portraits of members of the Medici family as he was their court painter. His work can be found in both the Palatina Gallery and the Uffizi Gallery in Florence, and in many other galleries around the globe. During his lifetime he was f ted as the finest portrait painter in Italy.

Painting by Peter Paul Rubens: A View of Het Steen in the Early Morning is a landscape painting now in the National Gallery in London. A rare example of a work painted for the artist's own pleasure rather than for a commission, it shows a view of the Het Steen estate near Brussels, which he had acquired in 1635, set in an early-morning autumn landscape. He had initially intended a much smaller painting focussing on the house, using three small oak planks, probably spares from his studio as the concept developed, seventeen more panels were added. It has influenced artists including John Constable, during his period working for Sir George Beaumont, who then owned the painting and later donated it to the National Gallery in 1823. The painting features the first convincing depiction of a mackerel sky.

Painting by Rembrandt: The Blinding of Samson is now in the St del. The painting is the first of its kind in pictorial tradition. No other artist at the time had painted this specific narrative moment. This painting was a gift to the House of Orange, Rembrandt's current patron of a few commissioned paintings.

Harvard College is established.

Colonial North America's slave trade begins when the first American slave carrier, Desire, is built and launched in Massachusetts.

Harvard University is founded in Cambridge, Massachusetts.

Francesco Stelluti publishes a summary of research on fossil wood conducted by himself and fellow Lincean Academy member Federico Cesi. Though resulting from meticulous research, the work reaches the wrong conclusion, describing the origin of fossil wood as inorganic.

Pierre de Fermat formulates his so-called Last Theorem, unsolved until 1995. In number theory, Fermat's Last Theorem (sometimes called Fermat's conjecture, especially in older texts) states that no three positive integers a, b, and c satisfy the equation aⁿ + bⁿ = cⁿ for any integer value of n greater than 2. The cases n = 1 and n = 2 have been known to have infinitely many solutions since antiquity. This theorem was first conjectured by Pierre de Fermat in 1637 in the margin of a copy of Arithmetica where he claimed he had a proof that was too large to fit in the margin.

Galileo Galilei demonstrates that unequal weights would fall with the same finite speed in a vacuum, and that their time of descent is independent of their mass. Thus, freely falling bodies, heavy or light, have the same constant acceleration, due to the force of gravity.

Jeremiah Horrox observes the first transit of Venus. Horrox (or Horrocks) was an English astronomer. He was the first person to demonstrate that the Moon moved around the Earth in an elliptical orbit; and he was the only person to predict the transit of Venus of 1639, an event which he and his friend William Crabtree were the only two people to observe and record.

Painting by Georges de La Tour: Magdalene with the Smoking Flame has been allotted the date of 1640, by analogy with the Saint Mary with a Mirror, which has been dated between 1635 and 1645. During the 17th century, great devotion was shown to Mary Magdalene in all Catholic countries. She was the perfect lover of Christ, her beauty made yet more appealing by reason of her repentance, which had a special attraction for a period so passionately interested in problems of mysticism, quietism and asceticism. The theme of the repentance of sinners and trials sent by God is illustrated in such subjects as the Repentance of St. Peter, Mary Magdalene and Job. A number of written works give evidence of the cult of the Magdalene and this cult was the more widespread since Provence owned two great sanctuaries dedicated to her: the grotto of La Sainte-Baume, and the Saintes-Maries-de-la-Mer. It has been suggested that Georges de La Tour took a gypsy as his model: at the time, there were many in Lorraine where he painted this picture.

John Punch, a runaway black servant, is sentenced to servitude for life. His two white companions are given extended terms of servitude. Punch is the first documented slave for life.

New Netherlands law forbids residents from harboring or feeding runaway slaves.

Torture is outlawed in England.

Painting by Frans Hals: Regents of the St. Elizabeth Hospital

Painting by Simon Vouet: Presentation in the Temple

Massachusetts is the first colony to legalize slavery.

The D'Angola marriage is the first recorded marriage between blacks in New Amsterdam.

The Tokugawa Shogunate institutes Sakoku — foreigners are expelled and no one is allowed to enter or leave Japan.

Calvinist lawyer Isaac La Peyrère seeks permission to publish his manuscript claiming that people have existed before Adam, and that Chaldeans can legitimately trace their civilization back 470,000 years. Permission is denied, but he will publish Men Before Adam anonymously 14 years later, inciting both outrage and mild amusement among religious leaders.

Dutch anatomist Nicolaas Tulp produces the first formal description of an ape (a chimp, bonobo or orangutan).

René Descartes publishes Principles of Philosophy arguing that the universe is governed by simple laws and that natural processes could have shaped the Earth.

Painting by Jos de Ribera: The Clubfooted Boy is housed in the Mus e du Louvre in Paris (part of the La Caze bequest of 1869), and was painted in Naples. Art historian Ellis Waterhouse wrote of it as "a touchstone by which we can interpret the whole of Ribera's art". Commissioned by a Flemish dealer, the painting features a Neapolitan beggar boy with a deformed foot. Behind him is a vast and luminous landscape, against which the boy stands with a gap-toothed grin, wearing earth-toned clothes and holding his crutch slung over his left shoulder. Written in Latin on the paper in the boy's hand is the sentence "DA MIHI ELEMOSINAM PROPTER AMOREM DEI" ("Give me alms, for the love of God"). This is one of the painter's last works, and one of the most bitter.

Painting by Rembrandt: The Night Watch is renowned for three characteristics: its colossal size (363 cm 437 cm (11.91 ft 14.34 ft)), the effective use of light and shadow (tenebrism) and the perception of motion in what would have traditionally been a static military portrait. The painting was completed in 1642, at the peak of the Dutch Golden Age. It depicts the eponymous company moving out, led by Captain Frans Banning Cocq (dressed in black, with a red sash) and his lieutenant, Willem van Ruytenburch (dressed in yellow, with a white sash). With effective use of sunlight and shade, Rembrandt leads the eye to the three most important characters among the crowd: the two gentlemen in the centre (from whom the painting gets its original title), and the woman in the centre-left background carrying a chicken. Behind them, the company's colours are carried by the ensign, Jan Visscher Cornelissen.

The city of Montr al is founded in what will become Canada.

Pascal's calculator or the Pascaline constructed

The mezzotint printmaking method was invented by the German amateur artist Ludwig von Siegen. Mezzotint is a printmaking process of the intaglio family, technically a drypoint method. It was the first tonal method to be used, enabling half-tones to be produced without using line- or dot-based techniques like hatching, cross-hatching or stipple. Mezzotint achieves tonality by roughening the plate with thousands of little dots made by a metal tool with small teeth, called a "rocker." In printing, the tiny pits in the plate hold the ink when the face of the plate is wiped clean. A high level of quality and richness in the print can be achieved.

The New England Confederation of Plymouth, Massachusetts, Connecticut, and New Haven adopts a fugitive slave law.

Workers dig up a skeleton in Flanders. A court physician to the Danish king observes the excavation, measures the skeleton in "Brabantian cubits," and attributes the skeleton to a giant. It will later be identified as a fossil proboscidian.

Evangelista Torricelli invents the barometer.

Manchu dynasty established in China; end of the Ming line.

The Manchu conquer China ending the Ming Dynasty. The subsequent Qing Dynasty rules until 1912.

Giacomo Torelli of Venice, Italy invents the first rotating stage.

(no entry for this year)

Peter Stuyvesant appointed governor of New Amsterdam.

George Fox founds the Society of Friends, or Quakers, in England.

Christiaan Huygens invents the pendulum and applies its workings to create highly accurate pendulum clocks.

Painting by Nicolas Poussin: The Holy Family on the Steps

In France, King Louis XIV establishes The Royal Academy of Painting and Sculpture.

The Peace of Westphalia ends the Thirty Years' War and the Eighty Years' War and marks the ends of Spain and the Holy Roman Empire as major European powers.

The Peace of Westphalia brings an end to the Thiry Years War.

Franciscus Hackius publishes a lavish book on the natural history and medicines available from Brazil, Historia Naturalis Brasileae.

King Charles I is executed for High treason, the first and only English king to be subjected to legal proceedings in a High Court of Justice and put to death.

George Fox, the founder of the Society of Friends, is imprisoned at Nottingham.

Painting by Diego Velázquez: Portrait of Innocent X is considered by many artists and art critics as the finest portrait ever created. It is housed in the Galleria Doria Pamphilj in Rome. The painting is noted for its realism, in that it is an unflinching portrait of a highly intelligent, shrewd but aging man. He is dressed in linen vestments, and the quality of the work is evident in the rich reds of his upper clothing, head-dress, and the hanging curtains. The pope, born Giovanni Battista Pamphilj, was initially wary of having his portrait taken by Velázquez, but relented after he was given reproductions of examples of Velázquez's portraiture. A contributing factor for this large advancement in the painter's career was that he had already depicted a number of members of Pamphilj's inner court. Yet the pope remained wary and cautious, and the painting was initially displayed to only his immediate family, and was largely lost from public view through the 17th and 18th centuries. The parchment held by the pope contains Velázquez's signature.

Connecticut legalizes slavery.

Irish archbishop James Ussher calculates the date of creation, based on the ages of biblical prophets. Using his calculations, theologians will identify the date of creation as on October 26, 4004 BC.

Tobacco arrives in Africa — European settlers grow it and use it as a currency.

William Harvey publishes Exercitationes de generatione animalium (On Animal Generation) explaining that all animal life begins as eggs, whether in birds, amphibians or mammals. According to Joseph Needham, in this work Harvey: (1) presented a doctrine of omne vivum ex ovo (all life comes from the egg), the first definite statement against the idea of spontaneous generation; (2) denied the possibility of generation from excrement and from mud, and pointed out that even worms have eggs; (3) identified the citricula as the point in the yolk from which the embryo develops and the blastoderm surrounding the embryo; (4) destroyed once and for all the Aristotelian (semen-blood) and Epicurean (semen-semen) theories of early embryogeny; and (5) settled the long controversy about which parts of the egg were nutritive and which was formative, by demonstrating the unreality of the distinction.

Painting by Carel Fabritius: The Goldfinch is an animal painting by Carel Fabritius of a chained goldfinch. The work belongs to the collection of the Mauritshuis in The Hague, Netherlands. The painting is a trompe-l' il of a European goldfinch (Carduelis carduelis) on top of its feeder that is attached to the wall. The feeder consists of two half rings and a blue container. The bird is sitting on the top ring, to which it is chained by its foot. In the 17th century, goldfinches were popular pets because they could be trained to draw water from a bowl with a miniature bucket. The Dutch title of the painting pertains to the bird's nickname puttertje, which refers to this custom and translates literally as 'little weller'.

Massachusetts requires all black and Indian servants to receive military training.

Rhode Island passes laws restricting slavery and forbidding enslavement for more than 10 years.

Painting by Rembrandt: Aristotle Contemplating a Bust of Homer was painted as a commission from Don Antonio Ruffo, from Messina in Sicily, who did not request a particular subject. Aristotle, world-weary, looks at the bust of blind, humble Homer, on which he rests one of his hands. This has variously been interpreted as the man of sound, methodical science deferring to Art, or as the wealthy and famous philosopher, wearing the jeweled belt given to him by Alexander the Great, envying the life of the poor blind bard. It has also been suggested that this is Rembrandt's commentary on the power of portraiture.

Oliver Cromwell dissolves the Rump Parliament and replaces it with the Nominated Assembly (also called the Assembly of Saints or Barebones Parliament.) After three months, the Nominated Assembly passes a motion to dissolve itself and Cromwell establishes the Protectorate.

A Virginia court grants blacks the right to hold slaves.

Scotland incorporated with the English Commonwealth.

Otto von Guericke invents a vacuum pump consisting of a piston and an air gun cylinder with two-way flaps designed to pull air out of whatever vessel it was connected to, and used it to investigate the properties of the vacuum in many experiments. This pump is described in Chapters II and III of Book III of the Experimenta Nova and in the Mechanica Hydraulico-pneumatica. Guericke demonstrated the force of air pressure with dramatic experiments. In 1657, he machined two 20-inch diameter hemispheres and pumped all the air out of them, locking them together with a vacuum seal. The air pressure outside held the halves together so tightly that sixteen horses, eight harnessed to each side of the globe, could not pull the halves apart. It would have required more than 4,000 pounds of force to separate them.

Painting by Rembrandt: The Polish Rider depicts a young man traveling on horseback through a murky landscape. When the painting was sold by Zdzislaw Tarnowski to Henry Frick in 1910, there was consensus that the work was by the Dutch painter Rembrandt. This attribution has since been contested, though this remains a minority view. There has also been debate over whether the painting was intended as a portrait of a particular person, living or historical, and if so of whom, or if not, what it was intended to represent. Both the quality of the painting and its slight air of mystery are commonly recognized, though parts of the background are very sketchily painted or unfinished.

Painting by Rembrandt: The Slaughtered Ox is an oil on beech panel painting by Rembrandt. It has been in the collection of the Louvre in Paris since 1857. A similar painting is in Kelvingrove Art Gallery and Museum, possibly by Rembrandt himself but probably by one of his pupils, perhaps Fabritius. Other similar, paintings attributed to Rembrandt or his circle, are held by museums in Budapest and Philadelphia. The work follows in a tradition of showing butchery, for example Pieter Aertsen's A Meat Stall with the Holy Family Giving Alms and Annibale Carracci's Butcher's Shop. Rembrandt made a drawing of a similar scene c.1635. Another, pre-1655, painting of a slaughtered ox (the example in Edinburgh, now attributed to Rembrandt's circle but formerly to Rembrandt) was perhaps inspired by a lost earlier work by Rembrandt himself. In northern Europe, the month of November was traditionally the season slaughtering livestock in northern Europe, before winter made feed difficult to find.

The island of Jamaica is captured from the Spaniards by the English.

Danish scholar Ole Worm publishes Musei Wormiani Historia, a successful book about his cabinet of natural curiosities.

Painting by Diego Velásquez: Las Meninas (The Ladies-in-Waiting) has a complex and enigmatic composition that raises questions about reality and illusion, and creates an uncertain relationship between the viewer and the figures depicted. Because of these complexities, Las Meninas has been one of the most widely analyzed works in Western painting. The painting shows a large room in the Royal Alcazar of Madrid during the reign of King Philip IV of Spain, and presents several figures, most identifiable from the Spanish court, captured, according to some commentators, in a particular moment as if in a snapshot. Some look out of the canvas towards the viewer, while others interact among themselves. The young Infanta Margaret Theresa is surrounded by her entourage of maids of honour, chaperone, bodyguard, two dwarfs and a dog. Just behind them, Velázquez portrays himself working at a large canvas. Velázquez looks outwards, beyond the pictorial space to where a viewer of the painting would stand. In the background there is a mirror that reflects the upper bodies of the king and queen. They appear to be placed outside the picture space in a position similar to that of the viewer, although some scholars have speculated that their image is a reflection from the painting Velázquez is shown working on. Las Meninas has long been recognised as one of the most important paintings in Western art history. The Baroque painter Luca Giordano said that it represents the "theology of painting" and in 1827 the president of the Royal Academy of Arts Sir Thomas Lawrence described the work in a letter to his successor David Wilkie as "the true philosophy of the art". More recently, it has been described as "Velázquez's supreme achievement, a highly self-conscious, calculated demonstration of what painting could achieve, and perhaps the most searching comment ever made on the possibilities of the easel painting".

The first persecution of Quakers occurs in Massachusetts.

Virginia passes a fugitive slave law.

Cromwell dies and his son Richard becomes Lord Protector.

Jesuit missionary Martino Martini publishes a manuscript explaining that documented Chinese history predates the time generally understood to mark Noah's flood (2,300 BC).

Richard Cromwell is pressured into dissolving the Protectorate; the Rump Parliament is restored.

John Tradescant deeds his family treasures to fellow collector Elias Ashmole. Ashmole will later donate the collection to Oxford University, stipulating that a separate building is to be constructed for it.

For the first time, women began to act in plays in London. Previously men had portrayed both male and female roles.

Painting by Jacob von Ruisdale: The Jewish Cemetery is an oil on canvas painting. It is an example of Dutch Golden Age painting and is now in the collection of the Detroit Institute of Arts. This painting was documented by John Smith in 1835, who wrote: "This grand and affecting picture exhibits the ruins of a church and convent upon the summit of a hill, occupying the whole extent of the view in the second distance, the declivity of which presents a cemetery, interspersed with large stones. On the foreground are a broken tree lying across a rapid stream, a tomb of black marble, with an inscription on it; a row of three sarcophagi extending along the front; and on the left stands a cluster of large umbrageous trees, the verdant hues of whose foliage is contrasted by the leafless trunk of a beech. Three persons in black are seen near a small tomb on the side of the hill, musing amidst the tombs. The grandeur and solemnity of the scene is strikingly enhanced by rolling stormy clouds, in which may be perceived the evanescent colours of a rainbow.

Charles II, King of England, orders the Council of Foreign Plantations to devise strategies for converting slaves and servants to Christianity.

End of Puritan rule in England; restoration of the Stuarts.

The Commonwealth of England ends and the monarchy is brought back during the English Restoration.

Foundation of the Royal Society, London, for the promotion of mathematical and physical science.

Painting by Charles Le Brun: The Family of Darius Before Alexander represents the scene when the Queen of Persia is kneeling at the feet of Alexander the Great.

Robert Boyle publishes The Sceptical Chymist helping to transform alchemy into chemistry. Though an alchemist himself with his own cache of secret notebooks, Boyle begins writing up experiments for use by others.

Painting by Rembrandt: The Syndics of the Drapers Guild has been described as Rembrandt's "last great collective portrait". The men (with the exception of Bel who is an attendant as indicated by his calotte) are drapers who were elected to assess the quality of cloth that weavers offered for sale to members of their guild. Their one-year terms in office began on Good Friday and they were expected to conduct their inspections thrice weekly. The Dutch word staal means 'sample' and refers to the samples of cloth that were assessed. The inspectors used pliers to press the seals of their city (front) and guild (reverse) into penny-sized slugs of lead that were specially affixed to record the results of the inspection. There were four grades of quality, the highest was indicated by pressing four seals and the lowest by pressing only one. The men, who are appraising a length of Persian-style fabric against exemplars from a swatch book, are (from left to right): Jacob van Loon, Volckert Jansz, Willem van Doeyenburg, Frans Hendricksz Bel, Jochem de Neve, and Aernout van der Mye. The guild commissioned this portrait and it hung in their guildhall, the Staalhof, until 1771. The painting is used on the packaging of Dutch Masters cigars.

Hereditary slavery is established, when Virginia law decrees that children of black mothers shall be bond or free according to the condition of the mother.

Massachusetts reverses a ruling dating back to 1652, which allowed blacks to train in arms. New York, Connecticut, and New Hampshire pass similar laws restricting the bearing of arms.

Charles II, King of England, gives the Carolinas to proprietors. Until the 1680s, most settlers in the region are small landowners from Barbados.

In Gloucester County, Virginia the first documented slave rebellion in the colonies takes place.

Maryland legalizes slavery.

German physician Otto von Guericke pieces together bones from different species to make a fossil "unicorn."

Painting by Frans Hals The Governors of the Almshouse is a regents' group portrait of five regents and their servant painted by Frans Hals in 1664 for the Oude Mannenhuis in Haarlem, the Netherlands. It forms a pendant with the Regentesses of the Old Men's Almshouse. Though it is no longer known which name belongs with which face, the regents portrayed were Jonas de Jong, Mattheus Everzwijn, dr. Cornelis Westerloo, Daniel Deinoot and Johannes Walles. Frans Hals painted them in his "loose style", with rough brush strokes. The painting is traditionally dated 1664, though no archival evidence has yet been found to confirm this. The date is chosen as the middle of the term that the sitters served as regents. Though the paintings as pendants seem to belong together, they did not hang together, and as was the case in the St. Elisabeth hospital across the street, they probably each hung in a separate regents' meeting room; the one for the ladies in the ladies' meeting room and the one for the men in the men's meeting room.

Maryland is the first colony to take legal action against marriages between white women and black men.

New York and New Jersey legalize slavery.

The State of Maryland mandates lifelong servitude for all black slaves. New York, New Jersey, the Carolinas, and Virginia all pass similar laws.

In his private museum in Rome, Virgilio Romano exhibits a Hippopotamus major canine tooth found in Pleistocene gravels along the Via Nomentana.

Thomas Willis publishes The Anatomy of the Brain and Nerves.

Isaac Newton discovers that white light is composed of different colors.

Painting by Rembrandt: The Jewish Bride gained its current name in the early 19th century, when an Amsterdam art collector identified the subject as that of a Jewish father bestowing a necklace upon his daughter on her wedding day. This interpretation is no longer accepted, and the identity of the couple is uncertain. The ambiguity is heightened by the lack of anecdotal context, leaving only the central universal theme, that of a couple joined in love. Speculative suggestions as to the couple's identity have ranged from Rembrandt's son Titus and his bride, or Amsterdam poet Miguel de Barrios and his wife. Also considered are several couples from the Old Testament, including Abraham and Sarah, or Boaz and Ruth. The likeliest identification, however, is that of Isaac and Rebekah, as described in Genesis 26:8, and is supported by a drawing by the artist of the same theme.

Great Plague occurs in London.

Robert Hooke observes cork under a microscope and uses the word cells to describe the tiny chambers that he sees. He publishes drawings of these cells, of fleas, and of other small creatures, in his book Micrographia.

Le Journal des Savants is first published in France, and Philosophical Transactions of the Royal Society is first published in England.

Painting by Jacob van Oost: The Painter's Studio, an allegory of the academic doctrine of beauty, in which the example of Classical Antiquity and draftsmanship were central. It is signed and dated lower right.

Maryland passes a fugitive slave law.

Samuel Morland builds a mechanical calculator that will add and subtract

Gravity is discovered.

Milton's Paradise Lost is published.

Painting by Jan Vermeer: The Art of Painting is one of Vermeer's most famous. In 1868 Thoré-Bürger, known today for his rediscovery of the work of painter Johannes Vermeer, regarded this painting as his most interesting. Svetlana Alpers describes it as unique and ambitious; Walter Liedtke "as a virtuoso display of the artist's power of invention and execution, staged in an imaginary version of his studio ..." According to Albert Blankert "No other painting so flawlessly integrates naturalistic technique, brightly illuminated space, and a complexly integrated composition." Many art historians think that it is an allegory of painting, hence the alternative title of the painting. Its composition and iconography make it the most complex Vermeer work of all.

Virginia declares that Christian baptism will not alter a person's status as a slave.

Treaty of Breda; peace established among England, Holland, France, Denmark.

Niels Stensen (Steno) describes his dissection of the head of a giant white shark and correctly identifies shark teeth, still generally thought (despite arguments to the contrary from Rondelet and Colonna in the preceding century) to be serpent tongues.

The Mission of Sault Ste. Marie, in what will become Michigan, is founded by Father Marquette.

New Jersey passes a fugitive slave law.

Natural historian John Somner finds woolly rhino teeth near Canterbury in Kent, and figures they might be the remains of a sea monster. As he will die before he can publish his conclusions, his brother William will print his article A Brief Relation of Some Strange Bones There Lately Digged Up In Some Grounds of Mr. John Somner.

Francesco Redi publishes Esperienze Intorno alla Generazione degli Insetti (Experiments on the Generation of Insects), which is regarded as his masterpiece and a milestone in the history of modern science. At the time, prevailing wisdom was that maggots arose spontaneously from rotting meat. Redi took six jars and divided them into two groups of three: In one experiment, in the first jar of each group, he put an unknown object; in the second, a dead fish; in the last, a raw chunk of veal. Redi covered the tops of the first group of jars with fine gauze so that only air could get into it. He left the other group open. After several days, he saw maggots appear on the objects in the open jars, on which flies had been able to land, but not in the gauze-covered jars. In the second experiment, meat was kept in three jars. One of the jars was uncovered, and two of the jars were covered, one with cork and the other one with gauze. Flies could only enter the uncovered jar, and in this, maggots appeared. In the jar that was covered with gauze, maggots appeared on the gauze but did not survive. Knowing full well the terrible fates of out-spoken thinkers such as Giordano Bruno and Galileo Galilei, Redi was careful to express his new views in a manner that would not contradict theological tradition of the Church; hence, his interpretations were always based on biblical passages, such as his famous adage: omne vivum ex vivo ("All life comes from life").

Jan Swammerdam dissects a caterpillar for Cosimo de Medici, demonstrating that the butterfly wings already exist inside the caterpillar's body. A year later, he will publish Historia Insectorum Generalis.

Robert Hooke presents a lecture to the Royal Society claiming that earthquakes, not the biblical flood, have caused fossils to be found on mountaintops and buried in stone.

Painting by Willem Kalf: Still Life with a Chinese Porcelain Jar is a sumptuous still life displaying the sort of costly wares that flowed through the Netherlands during its heyday as a trade center. In Still Life with a Chinese Porcelain Jar, Kalf selected an array of precious objects with which to showcase the wealth and refinement of the Netherlands and his own skills as a painter. Everything is expensive, imported, or both. The citrus fruit, glassware from Venice, and Chinese porcelain jar are evidence of Dutch sailors' enterprise. Local talent is displayed by Dutch silver and a rummer, or wineglass, with a cherub holding a cornucopia at its base. They stand on a marble tabletop with a carelessly crumpled oriental rug. Amid all that luxury is a lesson: a ticking watch on the silver platter reminds the viewer that such earthly riches are fleeting, and worth far less than eternal salvation. The carefully balanced composition, rich colors, and warm tonalities make this painting an object of beauty as well as moral edification.

Niels Stensen (Steno) publishes Forerunner, showing diagrammatic sections of the Tuscany area geology, making the important point that sediments are deposited in horizontal layers.

Brandt discovers phosphorus.

Painting by José Antolínez: The Picture Merchant

The Hudson Bay Company is incorporated.

The State of Virginia prohibits free blacks and Indians from keeping Christian (i.e. white) servants.

Agostino Scilla publishes Vain Speculation Undeceived by Sense arguing for the organic origin of fossils.

The Greenwich Observatory is built.

Isaac Newton completes his book, The Methods of Fluxions and Infinite Series, with its Application to the Geometry of Curve-lines (which was not published until 1736). The book describes Newton's analytic methods, which would now be called calculus.

Gottfried Wilhelm von Leibniz invents the Staffelwalze (stepped drum, or stepped reckoner), the first mechanical calculator that could perform all four mathematical operations. Its intricate precision gearwork, however, was somewhat beyond the fabrication technology of the time; mechanical problems, in addition to a design flaw in the carry mechanism, prevented the machines from working reliably. Despite the mechanical flaws, it suggested possibilities to future calculator builders. The operating mechanism, invented by Leibniz, called the stepped cylinder or Leibniz wheel, was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator. In discussing his invention, Leibniz wrote Indignum enim est excellentium virorum horas servii calculandi labore perire, qui Machina adhibita vilissimo cuique secure transcribi posset — For it is unworthy of distinguished men to waste their time with slavish calculations, which can be done safely with the use of this machine by anyone else.

The Mississippi River is discovered.

Apothecary and antiquary John Conyers finds an elephant tusk and a nearby handaxe about 12 feet below ground at Gray's Inn Lane, London. The Gray's Inn Lane handaxe will later be dated at 350,000 years old.

Leeuwenhoek begins corresponding with the Royal Society of London describing his discoveries under the microscope.

Painting by Jan Steen: Merrymaking at an Inn combines the Flemish tradition of low-life tavern scenes with the more elegant Dutch merry companies.

New York declares that blacks who convert to Christianity after their enslavement will not be freed.

Antonie van Leeuwenhoek creates a simple microscope with only one lens. He developed glass-handling techniques that allowed him to create lenses with magnifying power up to 270x — by far the most powerful magnifying lenses available. Although compound microscopes had been invented in the 1590s, nearly forty years before Leeuwenhoek was born, there were technical difficulties in building them, meaning that early compound microscopes (such as used by Robert Hooke) had a maximum magnification of only 20x or 30x. Leeuwenhoek's more powerful lenses allowed him to discover protozoa and other single-celled organisms and to be the first to observe bacteria.

King Philip's War (sometimes called the First Indian War, Metacom's War, Metacomet's War, or Metacom's Rebellion) begins in New England. The war was an armed conflict between American Indian inhabitants of present-day New England and English colonists and their Indian allies in 1675 78. The war is named for Metacomet, the Wampanoag chief who adopted the English name Philip due to the friendly relations between his father and the Mayflower Pilgrims. The war continued in the most northern reaches of New England until the signing of the Treaty of Casco Bay in April 1678. The war was the single greatest calamity to occur in seventeenth century Puritan New England and is considered by many to be the deadliest war in the history of European settlement in North America in proportion to the population. In the space of little more than a year, twelve of the region's towns were destroyed and many more damaged, the colony's economy was all but ruined, and its population was decimated, losing one-tenth of all men available for military service. More than half of New England's towns were attacked by Indians. By early July, over 400 had surrendered to the colonists, and Metacomet took refuge in the Assowamset Swamp below Providence, close to where the war had started. The colonists formed raiding parties of militia and Indians. They were allowed to keep the possessions of warring Indians and received a bounty on all captives. Metacomet was killed by one of these teams when he was tracked down by Captain Benjamin Church and Captain Josiah Standish of the Plymouth Colony militia at Mount Hope in Bristol, Rhode Island. He was shot and killed by an Indian named John Alderman on August 12, 1676. After his death, his wife and nine-year-old son were captured and sold as slaves in Bermuda. Philip's head was mounted on a pike at the entrance to Fort Plymouth, where it remained for more than two decades. His body was cut into quarters and hung in trees. Alderman was given Metacomet's right hand as a reward.

Jan Swammerdam publishes a treatise on the mayfly entitled A Figure of Man's Miserable Life.

The English physicist Sir Isaac Newton argues that light is composed of particles, which are refracted by acceleration toward a denser medium, and posits the existence of aether to transmit forces between the particles.

In Virginia, black slaves and black and white indentured servants band together to participate in Bacon's Rebellion.

The first quantitative estimate of the speed of light was made in 1676 by Danish astronomer Ole R mer. From the observation that the periods of Jupiter's innermost moon Io appeared to be shorter when the Earth was approaching Jupiter than when receding from it, he concluded that light travels at a finite speed, and estimated that it takes light 22 minutes to cross the diameter of Earth's orbit. Christiaan Huygens combined this estimate with an estimate for the diameter of the Earth's orbit to obtain an estimate of speed of light of 220000 km/s, 26% lower than the actual value.

(no entry for this year)

The Treaty of Nijmegen ends various interconnected wars among France, the Dutch Republic, Spain, Brandenburg, Sweden, Denmark, the Prince-Bishopric of M nster, and the Holy Roman Empire.

The habeas corpus act is passed in England.

The State of Virginia forbids blacks and slaves from bearing arms, prohibits blacks from congregating in large numbers, and mandates harsh punishment for slaves who assault Christians or attempt escape.

The Pueblo Revolt drives the Spanish out of New Mexico until 1692.

Royal Society member Neremiah Grew examines the "sea serpent teeth" found by John Somner in 1668 and recognizes that they are rhino teeth.

Amsterdam physician Gerard Blasius publishes Anatome Animalium examining animals' internal anatomy and skeletal structure.

The first museum of natural history is established in London.

Painting by Claude Lorraine: Landscape with Ascanius Shooting the Stag of Sylvia was painted in Rome for Prince Lorenzo Onofrio Colonna (1637 1689), Claude's most important patron in his last years, and is now in the Ashmolean Museum, Oxford. It is signed, dated with the year, and inscribed with the subject (at centre bottom), as Claude sometimes did with his less common subjects. It was Claude's last painting, and is perhaps not quite finished; it therefore does not appear in the Liber Veritatis, where he made drawings to record his finished works. His date of birth is uncertain, but he was at least in his late seventies when he painted it, perhaps as old as 82.

What will become Pennsylvania is colonized by William Penn. Penn founds Philadelphia. Also, with other Friends, Penn purchases East Jersey.

New York makes it illegal for slaves to sell goods.

Virginia declares that all imported black servants are slaves for life.

La Salle (Ren -Robert Cavelier, Sieur de La Salle) explores the length of the Mississippi River and claims Louisiana for France.

Peter the Great becomes joint ruler of Russia (sole tsar in 1696).

Neremiah Grew publishes The Anatomy of Plants with microscopic observations of plant features.

The Ottoman Empire suffered a significant defeat at the Siege of Vienna, a failed attempt to capture the city of Vienna, Austria. This marked the beginning of the empire's decline, as it was forced to cede territory and lost its status as a major European power.

The Ottoman Empire is defeated in the second Siege of Vienna.

Oxford opens the Ashmolean Museum, the world's first public museum. The museum's practice of allowing entry to anyone who pays the admission fee horrifies scholars from continental Europe.

Dublin doctor Thomas Molyneux shows that a "giant's tooth" from the collection of Ole Worm really belongs to a whale, and a "giant's hand" shown in London is really the fin of a porpoise.

Filippo Buonanni publishes Ricreatione dell' occhio e della mente. — perhaps the first book devoted entirely to shells, for which he is considered a founder of conchology.

Gottfried Wilhelm von Leibniz publishes a description of his invention of the differential calculus.

Edict of Fontainebleau outlaws Protestantism in France. King Charles II dies.

Timothy Nourse anticaptes eugenics with the argument that a gentleman "ought at least to be as careful of his race as he is of that of his horses, where the fairest and most beautiful are made choice of for breed."

Robert Boyle composes Free Inquiry into the Vulgarly Received Notion of Nature criticizing the notion that nature is capable of autonomy from God.

Sir Isaac Newton publishes his Philosophi Naturalis Principia Mathematica (or just Principia), which describes an infinite, steady state, static, universe, in which matter on the large scale is uniformly distributed. In the work, he establishes the three Laws of Motion ( a body persists its state of rest or of uniform motion unless acted upon by an external unbalanced force ; force equals mass times acceleration ; and to every action there is an equal and opposite reaction ) and the Law of Universal Gravitation (that every particle in the universe attracts every other particle according to an inverse-square formula) that were not to be improved upon for more than two hundred years. He is credited with introducing the idea that the motion of objects in the heavens (such as planets, the Sun and the Moon) can be described by the same set of physical laws as the motion of objects on the ground (like cannon balls and falling apples).

The Pennsylvania Quakers pass the first formal antislavery resolution.

Giovanni Ciampini describes remains of the extinct straight-tusked elephant, Elephas antiquus, found in the town of Vitorchiano in the region of Latium.

John Locke publishes his first Letter Concerning Toleration. Its initial publication was in Latin, though it was immediately translated into other languages. Locke's work appeared amidst a fear that Catholicism might be taking over England, and responds to the problem of religion and government by proposing religious toleration as the answer. This "letter" is addressed to an anonymous "Honored Sir": this was actually Locke's close friend Philipp van Limborch, who published it without Locke's knowledge.

William III ascends to the throne over England, Scotland, and Ireland.

John Locke publishes his Essay Concerning Human Understanding.

South Carolina passes the first comprehensive slave codes.

Virginia passes the first anti-miscegenation law, forbidding marriages between whites and blacks or whites and Native Americans.

Virginia prohibits the manumission of slaves within its borders. Manumitted slaves are forced to leave the colony.

The colonies of Plymouth and Massachusetts are united.

Witchcraft mania begins to take over new England.

The College of William and Mary is founded in Williamsburg, Virginia, by a royal charter.

Naturalist John Ray publishes Three Physicotheological Discourses about the Creation, the Deluge and the Conflagration, discussing conflicting theories about the nature of fossils.

Rice cultivation is introduced into Carolina. Slave importation increases dramatically.

The Bank of England is established.

Painting by Rachel Ruysch: Flowers on a Ledge. Ruysch's skill lay in the minute observation of each flower in a totally realistic way which is then composed into an elaborate arrangement which would be very difficult to achieve in nature, as the flowers would not support each other so well under such an arrangement. In common with most flower pieces from the last third of the 17th century, the colors of the flowers are much more carefully balanced than in the earlier pictures.

The Royal African Trade Company loses its monopoly and New England colonists enter the slave trade.

Scandinavian historian Olof Rudbeck publishes his attempt to chronologically measure sedimentary deposits, laying the foundations for the field of stratigraphy.

Calcutta is founded by the English.

Edward Lhwyd publishes a description of a "flatfish" in the Philosophical Transactions of the Royal Society. (The flatfish is really a trilobite, an ancient marine arthropod.)

Painting by Alexandre-François Desportes: Autoportrait en chasseur (Self-portrait as hunter). Desportes was born in Champigneulle, Ardennes. He studied in Paris, in the studio of the Flemish painter Nicasius Bernaerts, a pupil of Frans Snyders. During a brief sojourn in Poland, 1695–1696, he painted portraits of John III Sobieski and Polish aristocrats; after the king's death Desportes returned to Paris, convinced that he should specialise in animals and flowers. He was received by the Académie de peinture et de sculpture in 1699, with the Self-Portrait in Hunting Dress now in the Musée du Louvre. In 1712–1713 he spent six months in England. He received many commissions for decorative panels for the royal chateaux: Versailles, Marly, Meudon, Compiègne and, his last royal commission, for Louis XV at Choisy, 1742. He also did decorative paintings for the duc de Bourbon at Chantilly. Both Louis XIV and Louis XV commissioned portraits of their favorite hunting dogs.

Edward Lhwyd publishes a book devoted to British fossils. In it, he describes ichthyosaur remains as those of a fish.

Based on a dissection he performed the year before, Edward Tyson publishes Orang Outan, sive Homo sylvestris pointing out similarities between chimpanzee and human anatomy. (Although he has dissected an infant chimp, Tyson uses the term "orang-outan.")

Samuel Sewall (1652-1730) publishes The Selling of Joseph — the first American protest against slavery.

Pennsylvania legalizes slavery.

African slaves are first forced to work on tobacco plantations, years before they become a workforce in the cotton fields.

The Collegiate School (which will later become Yale) is founded in Saybrook, Connecticut.

The commode becomes a popular piece of furniture.

The Daily Courant — the first daily newspaper — is published in London.

New York passes An Act for Regulating Slaves. Among the prohibitions of this act are meetings of more than three slaves, trading by slaves, and testimony by slaves in court.

Delaware separates from Pennsylvania and becomes an independent colony.

Connecticut assigns the punishment of whipping to any slaves who disturb the peace or assault whites.

Massachusetts requires those masters who liberate slaves to provide a bond of 50 pounds or more in the event that the freedman becomes a public charge.

Rhode Island makes it illegal for blacks and Indians to walk at night without passes.

Gottfried Wilhelm Leibniz invents the Binary System

Isaac Newton is elected president of the Royal Society.

Jonathan Swift publishes "A Tale of a Tub."

Massachusetts makes marriage and sexual relations between blacks and whites illegal.

New York declares that punishment by execution will be applied to certain runaway slaves.

The Virginia Slave Code codifies slave status, declaring all non-Christian servants entering the colony to be slaves. It defines all slaves as real estate, acquits masters who kill slaves during punishment, forbids slaves and free colored peoples from physically assaulting white persons, and denies slaves the right to bear arms or move abroad without written permission.

A giant fossil tooth is found along the banks of the Hudson River. It will initially be identified (by Cotton Mather) as that of a human giant who perished in Noah's flood, then correctly identified (by Georges Cuvier) as that of a mastodon.

Maria Sibylla Merian publishes Metamorphosis Insectorum Surinamensium describing insect species and other animals she has studied in Surinam.

The Ambonese Curiosity Cabinet by G.E. Rumphius is published. It provides detailed descriptions of soft and hard shellfish, minerals, rocks and fossils from Indonesia.

Connecticut requires that Indians, mulattos, and black servants gain permission from their masters to engage in trade.

New York declares blacks, Indians, and slaves who kill white people to be subject to the death penalty.

Hans Sloane publishes the first of two volumes describing the natural wonders of Jamaica. (The second volume will be published in 1725.)

Africans in the colony of South Carolina outnumber Europeans, making it the first English colony with a black majority.

Blacks outnumber whites in South Carolina.

Rhode Island requires that slaves be accompanied by their masters when visiting the homes of free persons.

The Southern colonies require militia captains to enlist and train one slave for every white soldier.

(no entry for this year)

New York forbids blacks, Indians, and mulattos from walking at night without lighted lanterns.

George Berkeley publishes "A Treatise Concerning the Principles of Human Knowledge."

Jakob Christoph Le Blon, an engraver, invents three-color printing.

Great Britain's Queen Anne overrules a Pennsylvania colonial law prohibiting slavery.

Pennsylvania prohibits the importation of blacks and Indians.

Rhode Island prohibits the clandestine importation of black and Indian slaves.

Rio de Janeiro is captured by the French.

In Charleston, South Carolina slaves are forbidden from hiring themselves out.

New York declares it illegal for blacks, Indians, and slaves to murder other blacks, Indians, and slaves.

New York forbids freed blacks, Indians, and mulatto slaves from owning real estate and holding property.

Pennsylvania prohibits the importation of slaves.

Slave Revolt: New York Slaves in New York City kill whites during an uprising, later squelched by the militia. Nineteen rebels are executed.

England secures the exclusive right to transport slaves to the Spanish colonies in America.

In Physico-theology, or a demonstration of the being and attributes of God from His works of creation William Derham tries to show that this is the best of all possible worlds.

Daniel Gabriel Fahrenheit constructs a mercury thermometer with a temperature scale.

On the advice of Leibniz, Peter the Great opens a public museum in Saint Petersburg.

Maryland declares all slaves entering the province and their descendants to be slaves for life.

Rhode Island legalizes slavery.

Edmund Halley lectures the Royal Society that the age of the Earth could be calculated by measuring the ocean's salinity since ocean salts result from sediments carried by rivers and streams.

The Collegiate School trustees vote to move to more hospitable New Haven. Citizens of other communities vied to host the fledgling school, but friends in New Haven outbid them, fulfilling the dream of one of New Haven's founders, the Reverend John Davenport, to establish a college there.

George Frideric Handel's "Water Music" is first performed on the Thames.

New York enacts a fugitive slave law.

William Stukely publishes An Account of the Almost Entire Sceleton of a Large Animal in a Very Hard Stone. The fossil is a plesiosaur, but is identified as a crocodile.

Dutch pharmacist Albertus Seba inventories his wonder cabinet for the avid collector Peter the Great, including 1,000 European insects and 400 animal specimens. The czar buys the inventory, and Seba begins his second collection, which he will describe in print starting in 1734.

Johann Heinrich Schulze makes fleeting sun prints of words by using stencils, sunlight, and a bottled mixture of chalk and silver nitrate in nitric acid, simply as an interesting way to demonstrate that the substance inside the bottle darkens where it is exposed to light.

The Collegiate School is renamed Yale College in recognition of Elihu Yale's donation of books and goods.

Voltaire is imprisoned in the Bastille; while there, he writes Oedipe.

Porcelain is first manufactured in Vienna.

(no entry for this year)

René Réaumur submits a report to the Paris Academy of Sciences proposing that a brief Noachian flood cannot account for the thick sedimentary layers (composed largely of broken shells) underlying the region of Tours. He suggests instead that the region was once covered by the sea.

Johann Sebastian Bach presents "The Brandenburg Concertos", a collection of six instrumental works, to Christian Ludwig, margrave of Brandenburg-Schwedt.

Johann Sebastian Bach, "Das wohltemperierte Klavier".

Benoît de Maillet anonymously publishes Telliamed, named after an oriental sage who says that the Earth must be at least 2 billion years old, based on measurements of falling sea level. (In fact, no sage exists; the title is really the author's name spelled backward.)

Virginia abolishes manumissions.

Antoine de Jussieu addresses a paper to the Académie des Sciences suggesting that an ancient object, e.g., a stone tool, made of the same material and by the same process as those used by a modern population probably has the same function.

Louisiana's Code Noir is enacted in New Orleans to regulate black slavery and to banish Jews from the colony

French Louisiana prohibits slaves from marrying without the permission of their owners.

(no entry for this year)

Jonathan Swift publishes "A Modest Proposal".

Jonathan Swift publishes Gulliver's Travels.

Balthasar Ehrhart identifies belemnites as fossil cephalopods.

Johann Heinrich Schulze discovered that silver nitrate darkened upon exposure to light.

Hans Sloane publishes two papers on fossils found in Siberia and North America arguing that they are fossil elephants, not giants or monsters.

The Qing Dynasty Emperor Yongzheng prohibits opium smoking in China. British refusal to comply with these anti-narcotics laws will ultimately lead to two wars (the Opium Wars) and the subjugation of China to Britain (and other western powers).

In An Attempt towards a Natural History of England, John Woodward describes three "pinecones" that, upon later examination, will prove to be coprolites.

Louis Bourget's Lettres philosophiques sur la formation des sels et de cristaux et sur la génération et la méchanique organique (Philosophical letters on the formation of salts and crystals and on generation and organic mechanisms) makes the distinction between organic and inorganic growth.

The number of male and female slaves imported to the North American British colonies balances out for the first time.

Otto Müller is among the first to see bacteria since Leeuwenhoek and the first to classify them into types.

First American tobacco companies open their doors in Virginia.

The Spanish reverse a 1730 decision and declare that slaves fleeing to Florida from Carolina will not be sold or returned.

Jethro Tull's Horse-hoeing husbandry advocates the use of manure, pulverization of the soil, growing crops in rows, and hoeing to remove weeds.

Johann Jakob Scheuchzer publishes Sacred Physics, a pictorial account of Earth's history based on the Old Testament. Included is a description of what he believes is a fossilized victim of the biblical flood.

The Reverend George Berkeley establishes the Berkeley Scholarships for graduate study at Yale, the first such scholarships in America.

Benjamin Franklin's "Poor Richard's Almanack" first issued.

Slaves aboard the ship of New Hampshire Captain John Major kill both captain and crew, seizing the vessel and its cargo.

Nöel-Antoine Pluche publishes the first of eight volumes of Le spectacle de la nature (Spectacle of nature), popularizing "natural theology" in France.

Quaker Elihu Coleman's A Testimony against That Anti-Christian Practice of Maling Slaves of Men is published.

Stephen Hales' Statical essays, containing haemastatics, etc., two volumes, reports his investigations on blood flow and pressure in animals and the hydrostatics of sap in plants.

The Swedish scientist and philosopher Emanuel Swedenborg proposes a hierarchical universe, still generally based on a Newtonian static universe, but with matter clustered on ever larger scales of hierarchy, endlessly being recycled. This idea of a hierarchical universe and the nebular hypothesis were developed further (independently) by Thomas Wright (1750) and Immanuel Kant (1775).

René de Réamure's Mémaoires pour servir à l'histoire des insects (History of insects) is one of the foundation works in entomology.

Georgia petitions Britain for the legalization of slavery.

Louis XV, King of France, declares that when an enslaved woman gives birth to the child of a free man, neither mother nor child can be sold. Further, after a certain time, mother and child will be freed.

Under an English law Georgia prohibits the importation and use of black slaves.

Systema Naturae (System of Nature) by Carolus Linnaeus introduces the system of classification for organisms that is still in use today.

(no entry for this year)

An indentured black servant petitions a Massachusetts court and wins his freedom after the death of his master.

Hermann Boerhaave prints Jan Swammerdam's Biblia naturae (Bible of nature), which was originally published to little notice in 1658. It contains his reports on the dissection of insects under a microscope.

Linnaeus's Genera Plantorum (Genera of Plants) explains his method of systematic botany and classifies 18,000 species of plants.

Georgia's trustees permit the importation of black slaves.

Spanish Florida promises freedom and land to runaway slaves.

Slaves in Stono, South Carolina rebel, sacking and burning an armory and killing whites. Some 75 slaves in South Carolina steal weapons and flee toward freedom in Florida (then under Spanish rule). Crushed by the South Carolina militia, the revolt results in the deaths of 40 blacks and 20 whiteThe colonial militia puts an end to the rebellion before slaves are able to reach freedom in Florida.

Native Americans traveling with French soldiers find mastodon fossils along the Ohio River. The bones will be shipped back to France and become the first American fossils studied by scientists.

David Hume publishes A Treatise of Human Nature.

Georgia and Carolina attempt to invade Florida in retaliation for the territory's policy toward runaways.

South Carolina passes the comprehensive Negro Act, making it illegal for slaves to move abroad, assemble in groups, raise food, earn money, and learn to read English. Owners are permitted to kill rebellious slaves if necessary.

(no entry for this year)

Abraham Trembley makes the first permanent graft of animal tissue, using the Hydra.

The Microscope Made Easy, by Henry Baker, introduces the construction and use of the microscope to the layman.

(no entry for this year)

First recorded cricket match: Kent versus All England.

Abraham Trembley's Mémoires summarizes his research on the hydra and his discovery of regeneration in polyps.

Scholar and teacher Abraham Trembley publishes Mémoires Concerning the Natural History of a Type of Freshwater Polyp with Arms Shaped Like Horns. After watching them move and eat, he has concluded that the simple creatures (later to be classified as cnidarians) are animals, not plants.

Traité d'insectologie (Treatise on insect ecology) by Charles Bonnet describes his observations on parthenogenetic reproduction and metamorphosis of aphids.

Bologna physician Vincenzo Menghini roasts the blood of fish, birds and mammals (including humans) then sifts through the residue with a magnetic blade, noting that roasted-blood particles adhere to it. The experiment provides evidence that blood contains iron.

(no entry for this year)

Andreas Marggraf discovers sugar in beets, laying the foundation for Europe's sugar-beet industry.

Tobias Smollett publishes The Adventures of Roderick Random.

L'homme Machine (Man the Machine) by Julien Offray de la Mettrie describes humans as machines, without freedom or will.

Georgia repeals its prohibition and permits the importation of black slaves.

Georges-Louis Leclerc de Buffon publishes the first volume of Historie Naturelle. Thirty-six volumes came out between 1749 and 1789, followed by eight more after his death. The Histoire Naturelle was meant to address the whole of natural history, but actually covers only minerals, birds, and the quadrupeds among animals. It is accompanied by some discourses and a theory of the earth by way of introduction, and by supplements including an elegantly written account of the epochs of nature. The Histoire Naturelle had a distinctly mixed reception in the eighteenth century. Wealthy homes in both England and France purchased copies, and the first edition was sold out within six weeks. But Buffon was criticised by some priests for suggesting (in the essay Les Epoques de Nature, Volume XXXIV) that the earth was more than 6,000 years old and that mountains had arisen in geological time. The Paris faculty of theology, acting as the official censor, wrote to Buffon with a list of statements in the Histoire Naturelle that were contradictory to Roman Catholic Church teaching. In June, 2017, an antiquarian book deal offered a complete second edition of the Historie Naturelle for 14500 .

Construction is started on Connecticut Hall at Yale, now the oldest building in New Haven and a National Historic Landmark.

Painting by Thomas Gainsborough: Mr and Mrs Andrews is one of his most famous works. However, it remained in the family of the sitters until 1960 and was very little known before it appeared in an exhibition in Ipswich in 1927. The work is an unusual combination of two common types of painting of the period: a double portrait, here of a recently married couple, and a landscape view of the English countryside. Gainsborough's work mainly consisted of these two different genres, but their striking combination side-by-side in this extended horizontal format is unique in Gainsborough's oeuvre, and extremely rare in other painters.

John Needham publishes Nouvelles Observations Microscopiques arguing that decomposing plant and animal matter can spontaneously generate new life. Fifteen years later, Italian polymath Lazzaro Spallanzani will conduct a more careful set of experiments then publish a report rejecting Needham's conclusions.

The minuet becomes a fashionable dance in Europe.

Colonial South Carolina prohibits slaves from learning about or practicing medicine.

George II repeals the 1705 act, making slaves real estate in Virginia.

Étienne Bonnot de Condillac's Traité de sensations claims that knowledge reaches humans only through the senses.

Benjamin Franklin describes electricity as a single fluid and distinguishes between positive and negative electricity in Experiments and Observations on Electricity. He shows that electricity can magnetize and demagnetize iron needles.

Encyclopedists Diderot and d'Alembert publish the first volume of the Encyclopedia, or Classified Dictionary of Sciences, Arts and Trades emphasizing a dispassionate presentation of factual information rather than reliance on age-old "wisdom."

The lightning conductor is invented by Benjamin Franklin, whose experiments with lightning include a flying a kite in a thunderstorm. The kite experiment shows that lightning is a form of electricity, similar to the discharge from a Leyden jar.

Stung by satires of its Philosophical Transactions, the Royal Society of London forms a committee that will vote on which papers merit publication.

Thomas Chippendale begins making furniture in his workshop in London, England.

English painter and engraver William Hogarth publishes the aesthetic treatise, The Analysis of Beauty.

Tobacco genus named by a Swedish botanist Carolus Linnaeus — Nicotiana rustica and Nicotiana tabacum named for the first time.

Russian scientist Georg Wilhelm Richmann is killed performing a lightning experiment in St. Petersburg. Richmann is electrocuted in while trying to quantify the response of an insulated rod to a nearby storm. The incident, reported worldwide, underscored the dangers inherent in experimenting with insulated rods and in using protective rods with faulty ground connections.

The British Museum opens.

The French and Indian War breaks out on the North American continent between the European powers Britain and France.

English critic and writer Samuel Johnson publishes A Dictionary of the English Language, a landmark of lexicography that he has compiled by himself over the course of eight years.

The Great Lisbon Earthquake occurs, killing more than 60,000 people. The huge earthquake (estimated at 9.0 on the modern Richter scale) strikes Lisbon, Portugal, at 9:40 am, on 1 November, during church services for All Saint's Day. Because the earthquake hits on an important church holiday and destroys almost every important church in the city, much anxiety and confusion is generated amongst the citizens of this staunch and devout Roman Catholic city and country, which had been a major patron of the Church. Theologians speculate on the religious cause and message, seeing the earthquake as a manifestation of the anger of God. Some philosophers struggle to reconcile the event with the concept that humanity lives in the best of all possible worlds — a world closely supervised by a benevolent deity.

English statesman and writer Edmund Burke publishes A Philosophical Inquiry into the Origin of Our Ideas of the Sublime and Beautiful. This work of aesthetics, with its emphasis on the sublime, will have a powerful influence on romantic artists and writers.

William Cullen observes the cooling effect of evaporating liquids and publishes the results in An Essay on the Cold Produced by Evaporating Fluids and Other Means of Producing Cold.

(no entry for this year)

The first English manual on guitar playing is published.

Pennsylvania Quakers forbid their members from owning slaves or participating in the slave trade.

Henri-Louis Duhamel du Monceau discovers that when he turns a seedling upside down, its roots and shoots reorient so that the root continues to grow downward while the shoot continues to grow upward.

Voltaire publishes his great satirical work Candide, inspired in part by the Great Lisbon Earthquake.

The British capture Québec from the French.

In Theoria Generationis (his MD dissertation), Caspar Friedrich Wolff claims the existence of a vis essentialis — an essential force — that is at the heart of all living matter. He also describes the differentiation of tissues in a developing embryo, refuting the preformation concept — the idea that development consists in the growth of a fully formed, but miniature individual. His views were not well received.

The Kew Botanical Gardens open in London.

Jupiter Hammon of Long Island, New York, publishes a book of poetry. This is believed to be the first volume written and published by an African-American

New Jersey prohibits the enlistment of slaves in the militia without their master's permission.

King George III ascends the English throne.

Giovanni Arduino proposes a naming system for geologic strata, in order of oldest to youngest: Primary: lacking fossils; Secondary: tilted with fossils; Tertiary: horizontal with fossils; Quaternary: sands and gravels overlying Tertiary strata. Although he does not relate these systems to scripture, many people will interpret them in terms of biblical events.

Photometria by German physicist Johann Lambert is an investigation of light reflections from planets, introducing the term ALBEDO (whiteness) for the differing reflectivities of planetary bodies.

In experiments with primitive apparatus, Daniel Bernoulli decides that the electrical force obeys an inverse square law similar to that of gravity.

The Swiss physicist Johann Heinrich Lambert supports Wright and Kant s hierarchical universe and nebular hypothesis, and also hypothesizes that the stars near the Sun are part of a group which travel together through the Milky Way, and that there are many such groupings or star systems throughout the galaxy.

Joseph Black discovers latent heat by finding that ice, when melting, absorbs heat without changing in temperature. Later he measures the latent heat of steam — that is, the heat required to keep water boiling without raising its temperature.

English poet, playwright, and novelist Oliver Goldsmith's Letters from a Citizen of the World is published, a collection of satirical essays on Britain from the point of view of a fictitious Chinese visitor.

French philosopher Jean-Jacques Rousseau writes a philosophical treatise on government and the populace, The Social Contract.

Austrian composer Wolfgang Amadeus Mozart, age 6, tours Europe as a musical prodigy.

Virginia restricts voting rights to white men.

Catherine the Great becomes Empress of all the Russias after death of her husband.

George III purchases the Paper Museum of Cassiano Dal Pozzo, a 17th- century patron of arts and sciences. Preserved by the Albani family, this "museum" contains more than 7,000 science illustrations, including highly accurate depictions from the Lincean Academy that will prove invaluable to later science historians.

On May 16, English critic and writer Samuel Johnson meets the young Scotsman James Boswell, who will become his biographer.

Painting by Joseph-Marie Vien: The Cupid Seller depicts a business transaction — the offer for sale of several wriggling cupids. The customers seem unimpressed.

Charles Mason and Jeremiah Dixon begin surveying Mason-Dixon Line between Pennsylvania and Maryland.

Chief Pontiac leads a Native American rebellion against British settlers in and around Detroit.

The French Indian War ends with the Treaty of Paris surrendering Canada to England.

Austrian composer Wolfgang Amadeus Mozart, age eight, writes his first symphony.

German archaeologist and critic Johann Winckelmann publishes his History of Ancient Art Among the Greeks, the first book to include the phrase "history of art" in the title.

Painting by John Singleton Copley: The Boy with a Squirrel, a portrait highly praised when exhibited in London. The subject is Copley's half-brother, Henry Pelham, seated at a table and playing with a pet squirrel. This picture, which made the young Boston painter a Fellow of the Society of Artists of Great Britain, by vote of September 3, 1766, had been painted the preceding year

Britain enacts Quartering Act, requiring colonists to provide temporary housing to British soldiers.

Stamp Act passed; this is the first direct British tax on colonists.

Italian biologist Lazzaro Spallanzani suggests preserving food by sealing it in containers that do not permit air to penetrate.

Leonhard Euler gives a general treatment of the motion of rigid bodies, including the precession and nutation of earth, in Theoria motus corporum solidorum seu rigidorum (Theory of the motion of solid and rigid bodies).

Britain repeals the Stamp Act.

Albrecht von Haller is the first to show that nerves stimulate muscles to contract and that all nerves lead to the spinal cord and the brain.

Horace-Bénédict de Saussure invents the electrometer, a device for measuring the electric potential by means of the attraction or repulsion of charged bodies.

Bifocal spectacles are invented by Benjamin Franklin.

First fire escape patented, consisting of a wicker basket on a pulley and chain.

Mozart's opera "Apollo et Hyacinthus," premieres in Salzburg.

Painting by Claude Joseph Vernet: A Storm on a Mediterranean Coast. Perhaps no painter of landscapes or sea-pieces has ever made the human figure so completely a part of the scene depicted or so important a factor in his design. In this respect he was heavily influenced by Giovanni Paolo Panini, whom he probably met and worked with in Rome. Vernet's work draws on natural themes, but in a way that is neither sentimental or emotive. The overall effect of his style is wholly decorative.

Painting by Jean-Honor Fragonard: The Swing (French: L'Escarpolette), also known as The Happy Accidents of the Swing (French: Les Hasards heureux de l'escarpolette, the original title), is an 18th-century oil painting in the Wallace Collection in London. It is considered to be one of the masterpieces of the rococo era, and is Fragonard's best known work. From a contemporary perspective, it would be hard to imagine a more frilly piece of trivia.

Britain passes Townshend Revenue Act levying taxes on America.

The Virginia House of Burgess boycotts the British slave trade in protest of the Townsend Acts. Georgia and the Carolinas follow suit.

Benjamin Franklin writes a thank-you letter to a wealthy Irish trader for a box of proboscidian "tusks and grinders." Franklin believes the remains belong to elephants but makes astute observations about how their climate must have differed from the present.

Painting by Alexander Roslin: The Lady with the Veil is one of the Swedish National Museum of Fine Arts' best loved paintings. The woman in the portrait is partially hidden by a black silk veil. Beneath the veil she is dressed for a special occasion in white lace and pink silk. During the 18th century, theatre was an important part of the life of the upper classes. Dressing up, disguising oneself and playing dramatic roles was a common pastime. The Lady with the Veil shows how one could dress up — la bolonaise — in the style of Bologna.

Britain's Capt. James Cook begins exploring the Pacific, putting ashore in such places as New Zealand and Australia.

Lazzaro Spallanzani's Prodromo d'un ouvrage sur les reproductions animales (Foreword to a work on animal reproduction) tells of his demonstration that spontaneous generation of animals does not take place in tightly closed bottles that have been boiled for more than 30 minutes.

Caspar Friedrich Wolff's De formatione intestinarum establishes principles of the formation of organs in embryos.

James Cook sets sail on the Endeavour bound for the South Pacific. Accompanying Cook is naturalist Joseph Banks, who will collect tens of thousands of plant and animal specimens and initiate the exchange of flora and fauna between Europe, the Americas and the South Seas.

Father Junipero Serra founds Mission San Diego, first mission in California.

John Robison measures the repulsion between two charged bodies and shows that this force is inversely proportional to the distance between the two bodies.

James Watt patents the modern steam engine, which finds wide use in manufacturing. It is an early milestone of the Industrial Revolution.

Painting by Jean-Honor Fragonard: Young Girl Reading, or The Reader (French: La Liseuse), is an 18th-century oil painting, purchased by the National Gallery of Art in Washington, DC in 1961 using funds donated by Ailsa Mellon Bruce, the daughter of Andrew W. Mellon, following her father's death. The work is more a genre painting of an everyday scene than a portrait, and the name of the sitter is not known. X-ray photography has revealed that the canvas originally featured a different head looking towards the viewer, which Fragonard painted over.

Painting by Thomas Gainsborough: The Blue Boy. Perhaps Gainsborough's most famous work, it is thought to be a portrait of Jonathan Buttall (1752 1805), the son of a wealthy hardware merchant, although this has never been proven. It is a historical costume study as well as a portrait: the youth in his 17th-century apparel is regarded as Gainsborough's homage to Anthony van Dyck, and in particular is very close to Van Dyck's portrait of Charles II as a boy.

Crispus Attucks, an escaped slave, becomes the first colonial resident to die for American independence when he is killed by the British in the Boston massacre.

Around 1770, the European slave trade with Africa reaches its peak, transporting nearly 80,000 enslaved Africans across the Atlantic annually.

Escaped slave, Crispus Attucks, is killed by British forces in Boston, Massachusetts. He is one of the first colonists to die in the war for independence.

Erasmus Darwin has the allegorical motto E conchis omnia or "Everything from shells" painted on his carriage, promoting the idea of common descent. Bowing to social pressure, he removes it shortly thereafter.

The first edition of the Encyclopedia Britannica is published.

In Gailenreuth Cave in Germany, Father Johann Esper finds human bones underlying those of extinct animals. He concludes that the bones got there by accident, an opinion Cuvier will share.

Italian anatomist Luigi Galvani discovers accidentally the action of electricity on the muscles of the dissected frog: it causes a twitch.

Joseph Priestly discovers that a plant can produce enough breathable air to sustain a mouse and keep a candle burning. Though he describes it in different terms, he has discovered oxygen.

On June 22, Lord Chief Mansfield rules in the James Somerset case that an enslaved person brought to England becomes free and cannot be returned to slavery. His ruling establishes the legal basis for the freeing of England's fifteen thousand slaves.

James Albert Ukawsaw Gronniosaw's writes the first autobiographical slave narrative.

New Jersey passes bill requiring a license to practice medicine.

Swedish scientist Johan Carl Wilcke calculates the latent heat of ice (the amount of heat absorbed when ice turns into water).

Jean Baptiste Point du Sable is the first settler in the community now known as Chicago. Point du Sable described himself as "a free mulatto man." He was married to a Potawatomi woman named Catherine some time in the 1770s.

Phillis Wheatley of Boston publishes Poems on Various Subjects, Religious and Moral. This is the first book of poetry published by an African-American woman.

Phillis Wheatley becomes the first published African-American poet when a London publishing company releases a collection of her verse.

Slaves in Massachusetts unsuccessfully petition the government for their freedom.

The first separate black church in America is founded in South Carolina.

The "Boston Tea Party" occurs as a protest against British taxation policies.

German poet Johann Wolfgang von Goethe writes the short novel The Sorrows of Young Werther.

Rhode Island becomes first colony to prohibit importation of slaves.

Connecticut, Rhode Island, and Georgia prohibit the importation of slaves.

The First Continental Congress bans trade with Britain and vows to discontinue the slave trade after the 1st of December.

Virginia takes action against slave importation.

Joseph Priestley discovers oxygen.

Lord Dunmore, promises freedom to male slaves who join British army.

General Washington forbids recruiting officers enlisting blacks to fight in defense of American freedom.

The first Spanish ship, the San Carlos, commanded by Juan Manuel de Ayala, enters San Francisco Bay.

The Grand Union flag is adopted by the American colonies in rebellion against England.

Abolitionist Society Anthony Benezet of Philadelphia founds the world's first abolitionist society. Benjamin Franklin becomes its president in 1787.

In April, the first battles of the Revolutionary war are waged between the British and Colonial armies at Lexington and Concord, Massachusetts. Black Minutemen participate in the fighting.

In July, George Washington announces a ban on the enlistment of free blacks and slaves in the colonial army. By the end of the year, he reverses the ban, ordering the Continental Army to accept the service of free blacks.

In November, Virginia Governor John Murray, Lord Dunmore, issues a proclamation announcing that any slave fighting on the side of the British will be liberated.

The slave population in the colonies is nearly 500,000. In Virginia, the ratio of free colonists to slaves is nearly 1:1. In South Carolina it is approximately 1:2. 1775 Georgia takes action against slave importation.

Benjamin Franklin and Benjamin Rush form an anti-slavery group in Philadelphia.

The American Revolution begins with fighting at Lexington and Concord, Massachusetts.

The Continental Congress appoints George Washington head of the Continental Army.

Franz Anton Mesmer suggests that "animal magnetism" causes attractions between certain persons. Mesmer's name becomes the root of the English verb "mesmerize".

Johann Christian Fabricius's Systema Entomologiae classifies insects based on the structure of mouth organs rather than wings.

Alessandro Volta describes his electrofore perpetuo device for producing and storing a charge of static electricity. This device replaces the Leyden jar and eventually leads to modern electrical condensers.

Grand duke Pietro Leopoldo establishes the Royal Museum of Physics and Natural History (La Specola) in Florence. Unlike many older natural history repositories, this institution will admit any visitor, at least anyone meeting the museum's standards for dress and hygiene. The museum includes a stuffed hippopotamus, that once belonged to Cosimo III, a member of the Medici who had a penchant for exotic animals. The hippo once roamed the Boboli Gardens. After its death, the hippo was inexpertly stuffed, and later displayed in Florence s Museum of Zoology and Natural History (La Specola), where it can still be seen today.

Painting by Joseph Wright: Vesuvius in Eruption is the subject of thirty paintings and at least one preliminary sketch by Joseph Wright of Derby, who travelled in Italy in the years 1773-1775. It appears that whilst Wright was in Italy Vesuvius was not erupting.

Presidio of San Francisco forms as a Spanish fort.

Continental Congress approves enlistment of free blacks .

Delaware prohibits the importation of African slaves.

In Philadelphia, Pennsylvania, members of the Continental Congress sign the Declaration of Independence.

In Philadelphia, Pennsylvania, the Society of Friends, also known as the Quakers, forbids its members from holding slaves.

Declaration of Independence published. The Declaration of Independence is the statement adopted by the Second Continental Congress meeting at the Pennsylvania State House (Independence Hall) in Philadelphia on July 4, 1776, which announced that the thirteen American colonies, then at war with the Kingdom of Great Britain, regarded themselves as thirteen newly independent sovereign states, and no longer under British rule. Instead they formed a new nation — the United States of America. John Adams was a leader in pushing for independence, which was passed on July 2 with no opposing vote cast. A committee of five had already drafted the formal declaration, to be ready when Congress voted on independence. The term "Declaration of Independence" is not used in the document itself. Although Americans generally regard themselves as having been independent since July 4, 1776, in fact true, legal independence was not achieved until the Treaty of Paris was signed in 1783 and ratified by the Congress of the Confederation on January 14, 1784.

Adam Smith publishes The Wealth of Nations, which lays the foundation for free-market capitalism.

Abbé Jacques-François Dicquemare describes reptilian fossils in Journal de Physique but refrains from speculating about their sources.

Pierre-Simon Laplace states that if all of the forces on all objects in any one time are known, then the future can be completely predicted.

Washington leads the Continental Army in a crossing of the Delaware River, beginning on Christmas Day. The crossing catches the British army unaware, resulting in a victory for the rebel forces.

The Bass Brewery was founded in 1777 by William Bass in Burton-upon-Trent, England. The main brand was Bass Pale Ale, once the highest-selling beer in the UK. By 1877, Bass had become the largest brewery in the world, with an annual output of one million barrels. Its pale ale was exported throughout the British Empire, and the company's distinctive red triangle became the UK's first registered trademark. Bass was a pioneer in international brand marketing. Very early on, Bass applied a red triangle to casks of its Pale Ale. Bottles of Bass with the Red Triangle logo have occasionally appeared in art and literature, including Édouard Manet's 1882 painting A Bar at the Folies-Bergère. In 2001, 66,500,000 litres of Bass were sold in the United States. However Bass seems to have suffered under the custodianship of InBev and later Anheuser-Busch InBev as it is undergoing heavy decline in American consumption, with 24,200,000 litres sold in the country in 2010.

San Jose, California, is founded on orders from Antonio María de Bucareli y Ursúa, Spanish Viceroy of New Spain, thus providing an answer to the not-yet-asked question, Do you know the way to San Jose?

Continental Congress adopts the Stars and Stripes replacing the Grand Union flag. The new flag has thirteen stars and thirteen stripes, representing the thirteen original states: Delaware, Pennsylvania, New Jersey, Georgia, Connecticut, Massachusetts, Maryland, South Carolina, New Hampshire, Virginia, New York, North Carolina, and Rhode Island.

Vermont amends its constitution to ban slavery. Over the next 25 years, other Northern states emancipate their slaves and ban the institution: Pennsylvania, 1780; Massachusetts and New Hampshire, 1783; Connecticut and Rhode Island, 1784; New York, 1799; and New Jersey, 1804. Some of the state laws stipulate gradual emancipation.

New York enfranchises all free propertied men regardless of color or prior servitude.

Vermont is the first of the thirteen colonies to abolish slavery and enfranchise all adult males.

Charles-Augustin Coulomb invents the torsion balance.

The German composer Ludwig von Beethoven, age eight, is presented by his father as a music prodigy.

Painting by John Singleton Copley: Watson and the Shark about a shark attack on a swimmer, Brook Watson, that occurred in Havana, Cuba in 1749. Copley had never visited Havana, and it is likely that he had never seen a shark, much less a shark attack. It is probable that he gleaned details of Havana harbor from prints and book illustrations: he includes the real landmark of Morro Castle in the background of the painting. The shark is less convincing; it includes details not found in sharks, such as forward-facing eyes and lips.

Rhode Island forbids the removal of slaves from the state.

Virginia prohibits the importation of slaves.

Buffon publishes Les Epoques de la Nature, asserting that the Earth is a staggering 74,832 years old, and has existed long before the arrival of humans or any other form of life.

Jan Ingenhousz discovers two distinct respiratory cycles in plants: at night oxygen is absorbed and carbon dioxide is exhaled; during the day carbon dioxide is absorbed and oxygen is exhaled. The exact nature of the exhaled gases becomes clear with the later discoveries by Lavoisier.

Jan Ingenhousz discovers photosynthesis: In Experiments on Vegetables Ingenhousz shows that sunlight is essential for the production of oxygen by leaves.

The first school of the arts is established in the New World, in Mexico City.

Capt. James Cook dies during a skirmish in Hawaii.

Lazzaro Spallanzani studies the role of semen in fertilization and learns that the sperm must make physical contact with the egg for fertilization to take place.

Massachusetts abolishes slavery and grants African-American men the right to vote.

A freedom clause in the Massachusetts constitution is interpreted as an abolishment of slavery. Massachusetts enfranchises all men regardless of race.

Delaware makes it illegal to enslave imported Africans.

Pennsylvania begins gradual emancipation.

Great Hurricane of 1780 — the deadliest Atlantic hurricane on record — kills 20,000 to 30,000 in Caribbean.

William Herschel discovers first binary star, Xi Ursae Majoris.

Abraham Gottlob Werner asserts that all rocks have been deposited by a primordial ocean. This "Neptunian" view is accepted with little question.

Mozart's opera "Idomeneo" premieres in Munich.

Painting by Henry Fuseli: The Nightmare shows a woman in deep sleep with her arms thrown below her, and with a demonic and apelike incubus crouched on her chest. The painting's dream like and haunting erotic evocation of infatuation and obsession was a huge popular success. After its first exhibition, at the 1782 Royal Academy of London, critics and patrons reacted with horrified fascination and the work became widely popular, to the extent that it was parodied in political satire, and an engraved version was widely distributed. In response, Fuseli produced at least three other versions.

Los Angeles, California, is founded by 54 settlers, including 26 of African ancestry.

Immanuel Kant publishes Critique of Pure Reason, a fundamental work of modern philosophy.

Pierre François André Méchain discovers M80 (globular cluster in Scorpio).

Johan Carl Wilcke introduces the concept of SPECIFIC HEAT.

Coloumb's Théorie des machiones simple (Theory of simple machines) is a study of friction.

Britain signs agreement recognizing U.S. independence.

Congress approves Great Seal of U.S. and the eagle as its symbol.

American Revolution Ends Britain and the infant United States sign the Peace of Paris treaty.

Earthquakes ravage Calabria in Italy, killing 30,000.

The amateur British astronomer John Michell proposes the theoretical idea of an object massive enough that its gravity would prevent even light from escaping (which has since become known as a black hole). He realizes that such an object would not be directly visible, but could be identified by the motions of a companion star if it was part of a binary system. A similar idea was independently proposed by the Frenchman Pierre-Simon Laplace in 1795.

Horace-Bénédict de Saussure's Essais sur l'hygromé (Essay on measuring humidity) describes how to construct a hygrometer from human hair that can measure relative humidity.

Joseph and Jacques Montgolfier make first public balloon flight.

Painting by Jacques-Louis David: Oath of the Horatii (French: Le Serment des Horaces), is now on display in the Louvre in Paris. The painting immediately became a huge success with critics and the public, and remains one of the best known paintings in the Neoclassical style. It depicts a scene from a Roman legend about a dispute between two warring cities, Rome and Alba Longa. Instead of the two cities sending their armies to war, they agree to choose three men from each city; the victor in that fight will be the victorious city. From Rome, three brothers from a Roman family, the Horatii, agree to end the war by fighting three brothers from a family of Alba Longa, the Curiatii. The three brothers, all of whom appear willing to sacrifice their lives for the good of Rome, are shown saluting their father who holds their swords out for them. Aside from the three brothers depicted, David also represents, in the bottom right corner, a woman crying whilst sitting down. She is Camilla, a sister of the Horatii brothers, who is also betrothed to one of the Curiatii fighters, and thus she weeps in the realisation that, in any case, she will lose someone she loves. The painting is considered a paragon of neoclassical art.

John Jay becomes first U.S. Secretary of State.

Russian trappers established a colony on Kodiak Island, Alaska.

Congress narrowly defeats Thomas Jefferson's proposal to ban slavery in new territories after 1800.

Treaty of Paris ratified, officially ending the American Revolutionary War

Congress of the Confederation ratifies the Treaty of Paris on January 14, 1784, formally ending the Revolutionary War.

John Wesley charters Methodist Church.

Historian and naturalist Cosimo Alessandro Collini publishes a description of the first known pterosaur.

George Atwood accurately determines the acceleration of a free-falling body.

Charles Willson Peale establishes a natural history museum in Philadelphia, one of the first successful American museums.

New York frees all slaves who served in the Revolutionary Army.

Napoleon Bonaparte (16) graduates from the military academy in Paris (42nd in a class of 51).

Lazzaro Spallanzani performs artificial insemination on a dog.

In his Theory of the Earth, James Hutton explains the principle of uniformitarianism: all geological features can be explained by changes that can be observed now, taking place over very long periods of time.

Couloumb makes precise measurements of the forces of attraction and repulsion between charged bodies and between magnetic poles, using a torsion balance, demonstrating conclusively that electric charge and magnetism obey inverse-square laws like that of gravity. He also discovers that electrically charged bodies discharge spontaneously. In the 20th century, it is found that cosmic radiation is responsible for this discharge.

First balloon flight across English Channel (Jean-Pierre Blanchard and John Jeffries).

French balloonists Jean-François Pilatre de Rozier and Jules Romain are killed when their Royal Balloon crashes near Boulogne, France, June 15, 1785, in what is considered the first aerial disaster.

Mozart's opera, The Marriage of Figaro, premieres in Vienna.

Frederick the Great, King of Prussia, dies.

Twining's Tea creates a logo that is still in use today, making it the world's oldest, continuous use logo. The founder of Twinings was Thomas Twining from Painswick, Gloucestershire in England. He opened Britain's first known tea room at No. 216 Strand, London, in 1706; it still operates today.

Federalist Papers published, calls for ratification of Constitution. The Federalist (later known as The Federalist Papers) is a collection of 85 articles and essays written (under the pseudonym Publius) by Alexander Hamilton, James Madison, and John Jay promoting the ratification of the United States Constitution. Seventy-seven were published serially in the Independent Journal and the New York Packet between October 1787 and August 1788. A compilation of these and eight others, called The Federalist: A Collection of Essays, Written in Favour of the New Constitution, as Agreed upon by the Federal Convention, September 17, 1787, was published in two volumes in 1788 by J. and A. McLean. The collection's original title was The Federalist; the title The Federalist Papers did not emerge until the 20th century. This book should be carefully read by anyone with an interest in American democracy.

Constitutional convention opens at Philadelphia, George Washington presiding.

The Northwest Ordinance bans slavery in the Northwest Territory (what becomes the states of Ohio, Indiana, Illinois, Michigan, and Wisconsin). The ordinance together with state emancipation laws create a free North.

Austrian emperor Jozef II bans children under 8 from labor.

Herschel discovers Enceladus, a moon of Saturn, and Titania and Oberon, moons of Uranus.

Jacques-Alexandre Charles shows that different gases expand by the same amount for a given rise in temperature (Charles Law).

Thomas Jefferson publishes Notes on the State of Virginia refuting Buffon's claim that America's harsh, moist climate stunts the growth of its inhabitants. He also addresses the issue of race, describing Native Americans favorably, but African slaves unfavorably.

Painting by Francisco de Goya: Manuel Osorio Manrique de Zúñiga, also known as Goya's Red Boy. Vicente Joaquin Osorio de Moscoso y Guzmán (1756–1816), Count of Altamira, had hired Goya for several family portraits. Altamira held many titles and was also a director of the Banco de San Carlos. In 1786, after painting several portraits of the court, Goya was nominated painter to Charles III. This painting, from 1787–88, is of Altimira's youngest son, Manuel, who was born in April 1784 and died at age eight on June 12, 1792.

Maryland votes (December 23) to cede a ten-square-mile area for District of Columbia.

New York City becomes first capital of US.

The Massachusetts General Court (legislature), following an incident in which free blacks were kidnapped and transported to the island of Martinique, declares the slave trade illegal and provides monetary damages to victims of kidnappings.

Captain Arthur Phillip forms English colony at Sydney, Botany Bay, New South Wales, Australia.

Kant publishes Critique of Practical Reason.

Juan-Bautista Bru mounts the first relatively accurate fossil reconstruction of an extinct animal from South America. Georges Cuvier classifies it as a giant sloth.

US Congress passes Federal Judiciary Act, creating a six-person Supreme Court.

George Washington becomes the first president of the United States.

Fletcher Christian leads Mutiny on HMS Bounty and Captain William Bligh. Mutineers from the Bounty settle on Pitcairn Island.

Former slave Olaudah Equiano publishes his memoirs, and he travels in Britain lecturing against slavery.

The fall of the Bastille marks the beginning of the French Revolution.

Gilbert White's The Natural History and Antiquities of Selborne, a series of notes about animal and plant life in Selborne, England, is the first recognizable work of ecology. It goes through about 300 different editions and is still in print today.

French polymath Antoine Lavoisier publishes a paper on French geology defining peacefully deposited pelagic sediments and violently deposited littoral sediments. He argues that these sediments illustrate a fluctuating sea level on an ancient planet.

The French chemist Antoine-Laurent de Lavoisier definitively states the Law of Conservation of Mass (although others had previously expressed similar ideas, including the ancient Greek Epicurus, the medieval Persian Nasir al-Din al-Tusi and the 18th Century scientists Mikhail Lomonosov, Joseph Black, Henry Cavendish and Jean Rey), and identifies (albeit slightly incorrectly) 23 elements which he claims can not be broken down into simpler substances.

Bourbon Whiskey is first created by Elijah Craig in Bourbon, Kentucky.

First U.S. census is conducted, showing a population of 3,939,214.

Society of Friends petitions Congress for abolition of slavery.

The first ten amendments to the US Constitution — The Bill of Rights — are ratified.

Washington, D.C., founded as the capitol of the United States.

German poet Johann Wolfgang von Goethe writes The Morphology of Plants stating that all plant organs, flowers included, began as leaves — an assertion that will enjoy some support from 21st-century genetic research.

Painting by Élisabeth Vigée Le Brun: Lady Hamilton as a Bacchante Emma, Lady Hamilton, model and actress, is best remembered as the mistress of Lord Nelson and as the muse of George Romney. She was born Amy Lyon in Ness near Neston, Cheshire, England, the daughter of Henry Lyon, a blacksmith who died when she was two months old. She was raised by her mother, the former Mary Kidd, at Hawarden, and received no formal education. She later changed her name to Emma Hart.

Vermont admitted as 14th state (first addition to the original thirteen colonies).

British doctors find that snuff leads to increased risk of nose cancer.

Luigi Galvani announces that electricity applied to severed frog's legs causes them to twitch and that frogs legs twitch in the presence of two different metals with no electric current present. The latter discovery eventually leads to Alessandro Volta's developing the electric battery.

Pierre Prévost develops his theory of exchanges of radiation of heat. He correctly shows that cold is merely the absence of heat and that all bodies continually radiate heat. If they seem not to radiate heat, it means that they are in heat equilibrium with their environment.

Charles Babbage is Born

John Stone, Concord, Massachusetts, patents a pile driver.

New York City traffic regulation creates first one-way street.

"La Marseillaise" composed by Claude-Joseph Rouget de Lisle.

Painting by Élisabeth Vigée Le Brun: Lady Hamilton as the Persian Sibyl, commissioned by the Duc de Brissac and painted in Naples, a copy of which was sent to Sir William. This portrait gained great fame wherever it was displayed, and was instrumental in the rise of Le Brun's career as a portrait artist.[ Emma, Lady Hamilton, model and actress, is best remembered as the mistress of Lord Nelson and as the muse of George Romney. She was born Amy Lyon in Ness near Neston, Cheshire, England, the daughter of Henry Lyon, a blacksmith who died when she was two months old. She was raised by her mother, the former Mary Kidd, at Hawarden, and received no formal education. She later changed her name to Emma Hart.

The Coinage Act of 1792 (also known as the Mint Act; officially: An act establishing a mint, and regulating the Coins of the United States), passed by the United States Congress on April 2, 1792, created the United States dollar as the country's standard unit of money, established the United States Mint, and regulated the coinage of the United States. This act established the silver dollar as the unit of money in the United States, declared it to be lawful tender, and created a decimal system for U.S. currency. The Act specified the issuing of three gold coins comprising a $10 gold coin called an "eagle", a $5 coin called a "half eagle", and a $2.5 coin called a "quarter eagle". The Act also authorized construction of a mint building in Philadelphia, the nation's capital at the time. This was the first federal building erected under the United States Constitution. Adjusted for inflation, the ten-dollar coin would be worth $231.00 in today's money. As collector's items, these gold coins have sold for more than $100,000 each.

U.S. postal service created; postage 6–12 cents, depending on distance. (In today's dollars, that would be somewhere between $1.40 and $3.00.)

Captain George Vancouver claims Puget Sound for Britain.

France declares war on Austria, starting French Revolutionary Wars.

The French Republic is proclaimed.

Twenty-four merchants form New York Stock Exchange at 70 Wall Street.

Guillotine first used (to execute highwayman Nicolas J. Pelletier).

Louvre opens in Paris.

Painting by Jacques-Louis David: The Death of Marat (French: La Mort de Marat or Marat Assassiné) is one of the most famous images of the French Revolution. David was the leading French painter, as well as a Montagnard and a member of the revolutionary Committee of General Security. The painting shows the radical journalist lying dead in his bath on 13 July 1793 after his murder by Charlotte Corday. Painted in the months after Marat's murder, it has been described by T. J. Clark as the first modernist painting, for "the way it took the stuff of politics as its material, and did not transmute it".

To enforce Article IV, Section 2, the U.S. Congress enacts the Fugitive Slave Law. It allows slaveowners to cross state lines to recapture their slaves. They must then prove ownership in a court of law. In reaction, some Northern states pass personal liberty laws, granting the alleged fugitive slaves the rights to habeas corpus, jury trials, and testimony on their own behalf. These Northern state legislatures also pass anti-kidnapping laws to punish slave-catchers who kidnap free blacks, instead of fugitive slaves.

King Louis XVI of France is executed.

Reverend James Douglas publishes Nenia Britannica; or, A Sepulchral History of Great Britain providing perhaps the first record of a fossil (sea urchin) at an archaeological site.

France becomes first country to use the metric system.

Eli Whitney invents the cotton gin (cotton enGINe), a machine that quickly and easily separates cotton fibers from their seeds, allowing for much greater productivity than manual cotton separation. By reducing the labor of removing seeds, the cotton gin made cotton growing more profitable, thereby raising demand for slave labor. The first federal census of 1790 counted 697,897 slaves; by 1810, there were 1.2 million slaves, a 70 percent increase. Slavery spread from the seaboard to some of the new western territories and states as new cotton fields were planted, and by 1830 it thrived in more than half the continent. Within 10 years after the cotton gin was put into use, the value of the total United States crop leaped from $150,000 to more than $8 million.

Slavery abolished in the French colonies.

John Frere describes and illustrates handaxes from Hoxne that will turn out to be some 400,000 years old.

Zoonomia, or the Laws of Organic Life by Erasmus Darwin (grandfather of Charles Darwin) contains his ideas about evolution, which are Lamarckian in that they assume the environment has a direct influence on organisms, causing permanent changes in the germ line.

Alessandro Volta demonstrates that the electric force observed by Galvani is not connected with living creatures, but can be obtained whenever two different metals are placed in a conducting fluid.

Beethoven (24) debuts as pianist in Vienna.

The US flag is modified to have fifteen stars and fifteen stripes, reflecting the addition of two new states: Vermont and Kentucky. This is the only US flag to have other than thirteen stripes.

Johann Friedrich Blumenbach publishes De generis humani varietate nativa liber arguing that humans comprise a single species with five varieties: Caucasian, Mongolian, Ethiopian, (American) Indian and Malayan.

James Hutton overturns the "Neptunian" view of rock formation in his Theory of the Earth, suggesting instead that forces of rock creation are balanced by forces of rock destruction.

George Washington declines a third term as President, gives his Farewell Address.

John Adams sworn in as the second president of the United States.

Napoleon invades Egypt and defeats the Egyptians at the Battle of the Pyramids.

Henry Cavendish determines the mass of Earth by measuring the gravity between two small masses and two large masses. This gives the gravitational constant G, which was the only unknown in Newton's equations. Solving for G enables Cavendish to establish that Earth is about 5.5 times as dense as water.

Enquiry concerning the source of heat which is excited by friction by Count Rumford (Benjamin Thompson) describes his experiments with boring cannons that show that the caloric theory of heat cannot be true, and that heat should be considered a kind of motion.

Painting by Jacques-Louis David: The Intervention of the Sabine Women shows a legendary episode following the abduction of the Sabine women by the founding generation of Rome. The genesis of Les Sabines and the work itself represented a significant departure for the day. Historical depictions had been typically commissioned. David however, conceived, produced and promoted his work for profit. He produced marketing material to accompany the first exhibition. Le Tableau des Sabines, Exposé Publiquement au Palais National des Sciences et des Arts "the Tableau of the Sabines, Public Exhibition at the National Palace of Arts and Science" contained his own account of the episode and anticipated the controversy over his use of nudity with an end-note explaining his rationale. Its 1799 exhibition attracted a large number of paying visitors for several years and in 1819 he sold Les Sabines and his L onidas at Thermopylae to the Royal Museums for 10,000 francs.

The Rosetta Stone is discovered in Egypt. The stone is a fragment of an Egyptian stele with the same inscription in three texts: ancient Egyptian hieroglyphs, Egyptian demotic script, and Greek. This side-by-side translation allows historians to translate ancient Egyptian hieroglyphs for the first time.

Napoleon Bonaparte becomes First Consul and seizes power in France.

Faujas publishes a description of the Maastricht animal, a spectacular mosasaur found in chalk quarries in the Netherlands, describing it as a crocodile.

Thomas Jefferson publishes a paper describing Megalonyx, a North American fossil ground sloth similar to the one found in South America.

George Shaw publishes a description of a platypus even though he suspects the odd animal might be a hoax.

Alexander von Humboldt names the Jurassic System, after the Jura Mountains. This time period will later be identified as the "middle period" for the dinosaurs.

William Smith maps rock formations in the vicinity of Bath, England, making perhaps the world's first geologic map. The same year, Smith, Joseph Townsend and Benjamin Richardson recognize rocks containing the Permian and Triassic, though not necessarily by those names. (These periods will later be identified as spanning the Earth's most catastrophic mass extinction.)

The British government purchases the collection of Scottish anatomist John Hunter, forming the Hunterian Museum.

First performance of Ludwig von Beethoven's 1st Symphony in C.

Painting by Francisco de Goya: The Nude Maja (Spanish: La Maja Desnuda) portrays a nude woman reclining on a bed of pillows, and was probably commissioned by Manuel de Godoy, to hang in his private collection in a separate cabinet reserved for nude paintings. Goya created a pendant of the same woman identically posed, but clothed, known today as La maja vestida (The Clothed Maja); also in the Prado, it is usually hung next to La maja desnuda. The subject is identified as a maja based on her costume in La maja vestida. The painting is renowned for the straightforward and unashamed gaze of the model towards the viewer. With this work Goya not only upset the ecclesiastical authorities, but also titillated the public and extended the artistic horizon of the day. It has been in the Museo del Prado in Madrid since 1901.

Between 1800 and 1803, naturalist Alexander von Humboldt visits Mexico and writes influential accounts of his observations.

Karl Friedrich Burdach coins the term BIOLOGY to denote the study of human morphology, physiology and psychology.

Erasmus Darwin publishes Phytologia declaring that leaves breathe air through tiny pores, sugar and starch are the products of plant "digestion," and nitrates and phosphorus promote vegetation.

Alessandro Volta announces his invention, made in 1799, of the electric battery, also known as the Voltaic pile. It consists of a stack of alternating zinc and silver discs separated by felt soaked in brine. It is the first source of a steady electric current.

William Herschel's "An investigation of the powers of prismatic colors to heat and illuminate objects" tells of his discovery of infrared radiation. While investigating the power of different parts of the spectrum to heat a thermometer, he finds that invisible light beyond the red produces the most heat.

Thomas Wedgwood conceives of making permanent pictures of camera images by using a durable surface coated with a light-sensitive chemical. He succeeds only in producing silhouettes and other shadow images, and is unable to make them permanent.

Thomas Jefferson becomes the third president of the United States.

Ireland and Great Britain, England and Scotland, form United Kingdom.

Giuseppe Piazzi discovers first asteroid, which is later named Ceres.

The English scientist Thomas Young demonstrates, in his famous double-slit experiment, the interference of light and concludes that light is a wave, not a particle as Sir Isaac Newton had ruled.

The Ohio Constitution outlaws slavery. It also prohibits free blacks from voting.

Gottfried Treviranus and Jean Baptiste de Lamarck independently broaden the meaning of BIOLOGY to include the study of all living things.

Considered the father of modern scientific education in America, Benjamin Silliman, Sr., teaches the first modern science course (chemistry at Yale) in the United States. Silliman later becomes a founder in 1818 of the American Journal of Science, one of the oldest scientific journals in the world.

Thomas Young's On the theory of light and colors is the first of three pivotal papers describing his wave theory of light.

Painting by Francisco de Goya: The Clothed Maja (Spanish: La maja vestida) is a clothed version of the earlier La maja desnuda (1797–1800) and is exhibited next to it in the same room at the Prado Museum in Madrid. It was twice in the collection of the Royal Academy of Fine Arts of San Fernando, also in Madrid, being "sequestered" by the Spanish Inquisition between 1814 and 1836, and has been in the Museo del Prado since 1901.

U.S. President Thomas Jefferson appoints Meriwether Lewis and William Clark to explore the uncharted West. Among the marvels Lewis and Clark are expected to find are erupting volcanoes, mountains of salt, unicorns, living mastodons and seven-foot-tall beavers. They will find none of these, but will find fossils.

US buys large tract of land from France — The Louisiana Purchase.

Meriwether Lewis and William Clark begin their exploration of the Louisiana territory.

Georges Cuvier suggests that fossils found in the area around Paris are "thousands of centuries" old. This casual observation pushes the age of the Earth well beyond its commonly accepted limits. Cuvier also publishes a paper explaining that the fossil animals he has studied bear no resemblance to anything still living, an unambiguous endorsement of the theory of extinction.

James Parkinson publishes the first of a three-volume work entitled Organic Remains of a Former World. In this volume, he describes fossils as the remains of Noah's Flood. In the next several years, he will recognize fossils as the remains of a world before people, and acknowledge as much in the third volume, published in 1811.

Nicolas-Théodore de Saussure's Recherches chimiques sur la végétation "Chemical researches on vegetation" shows that plants require carbon dioxide from the air and nitrogen from the soil. Earlier researchers had assumed the plants got carbon from the soil instead of from the air.

John Leslie's An experimental inquiry into the nature and propagation of heat establishes that the transmission of heat through radiation has the same properties as the propagation of light.

Britain's Lord Nelson defeats the Franco-Spanish fleet at the Battle of Trafalgar. Lord Nelson is killed, but his victory ends Napoleons power at sea and makes a French invasion of Britain impossible.

The field of comparative anatomy begins, with the publications of Baron Georges Cuvier's Lesson in Comparative Anatomy

Pierre-Simon Laplace measures molecular forces in liquids and announces his theory of capillary forces.

The English chemist John Dalton develops his atomic theory, proposing that each chemical element is composed of atoms of a single unique type, and that, though they are both immutable and indestructible, they can combine to form more complex structures.

(no entry for this year)

The Slave Trade Act 1807 or the Abolition of the Slave Trade Act 1807, was an Act of the Parliament of the United Kingdom passed on 25 March 1807, with the title of "An Act for the Abolition of the Slave Trade". The original act is in the Parliamentary Archives. The act abolished the slave trade in the British Empire, in particular the Atlantic slave trade, and also encouraged British action to press other European states to abolish their slave trades, but it did not abolish slavery itself.

Thomas Young introduces the concept of, and is the first to use the word, ENERGY.

Robert Fulton develops the first practical steamboat, the Clermont, which sails from New York City to Albany and back.

Painting by Jean-Auguste-Dominique Ingres: The Valpincon Bather, painted while the artist was studying at the French Academy in Rome, it was originally titled Seated Woman but later became known after one of its nineteenth-century owners. Ingres had earlier painted female nudes, such as his Bathing Woman of 1807, yet this work is widely regarded as his first great treatment of the subject. As in the previous smaller work, the model is shown from behind; however, The Valpincon Bather lacks the earlier painting's overt sexuality, instead depicting a calm and measured sensuality.

United States Bans Slave Trade Importing African slaves is outlawed, but smuggling continues.

The US prohibits the importation of new slaves from Africa (but the holding of existing slaves and their descendents remains legal).

Étienne-Louis Malus discovers that reflected light is polarized and introduces the term POLARIZATION.

12 Feb 1809

Abraham Lincoln is born

James Madison becomes the fourth president of the United States.

Mary Anning's brother Joseph discovers the world's first recognized fossil ichthyosaur. Mary Anning will collect the fossil the next year.

"Luddites" destroy industrial machines in North England, in protest over too rapid modernization.

Georges Cuvier identifies the "biblical flood" victim, described by Johann Jakob Scheuchzer in 1731, as a giant salamander.

Between 1812 and 1815, the United States and Great Britain fight the War of 1812.

Napoleon invades Russia; he captures Moscow, but unable to spend the winter there when the city catches fire, he marches his army back to France, experiencing tremendous losses along the way.

US declares war on Britain — War of 1812 begins.

Georges Cuvier correctly identifies pterosaurs as flying reptiles. His conclusions will be largely ignored for many years.

William Hyde Wollaston invents the camera lucida, a device for projecting an image onto a flat surface, such as drawing paper, on which the object can then be traced.

(no entry for this year)

Painting by Francisco de Goya: The Third of May 1808 (also known as El tres de mayo de 1808 en Madrid or Los fusilamientos de la montaña del Príncipe Pío, or Los fusilamientos del tres de mayo) is now in the Museo del Prado, Madrid. In the work, Goya sought to commemorate Spanish resistance to Napoleon's armies during the occupation of 1808 in the Peninsular War. Along with its companion piece of the same size, The Second of May 1808 (or The Charge of the Mamelukes), it was commissioned by the provisional government of Spain at Goya's suggestion. The painting's content, presentation, and emotional force secure its status as a groundbreaking, archetypal image of the horrors of war. Although it draws on many sources from both high and popular art, The Third of May 1808 marks a clear break from convention. Diverging from the traditions of Christian art and traditional depictions of war, it has no distinct precedent, and is acknowledged as one of the first paintings of the modern era. According to the art historian Kenneth Clark, The Third of May 1808 is "the first great picture which can be called revolutionary in every sense of the word, in style, in subject, and in intention".

Painting by Jean Auguste Dominique Ingres: Grande Odalisque, also known as Une Odalisque or La Grande Odalisque depicts an odalisque, or concubine. Ingres' contemporaries considered the work to signify Ingres' break from Neoclassicism, indicating a shift toward exotic Romanticism. Grande Odalisque attracted wide criticism when it was first shown. It has been especially noted for the elongated proportions and lack of anatomical realism. The work is displayed in the Louvre, Paris. The painting was commissioned by Napoleon's sister, Queen Caroline Murat of Naples, and finished in 1814. Ingres drew upon works such as Dresden Venus by Giorgione, and Titian's Venus of Urbino as inspiration for his reclining nude figure, though the actual pose of a reclining figure looking back over her shoulder is directly drawn from the 1809 Portrait of Madame Récamier by Jacques-Louis David. Madame Récamier painted by Jacques-Louis David (1800). Ingres portrays a concubine in languid pose as seen from behind with distorted proportions. The small head, elongated limbs, and cool color scheme all reveal influences from Mannerists such as Parmigianino, whose Madonna with the Long Neck was also famous for anatomical distortion. This eclectic mix of styles, combining classical form with Romantic themes, prompted harsh criticism when it was first shown in 1814. Critics viewed Ingres as a rebel against the contemporary style of form and content

The British army burns down the White House in Washington DC.

The defeat of the Creeks by Andrew Jackson begins the forced departure of Indian peoples from the South.

Three thousand troops of the United States Army, led by General Andrew Jackson, defeat the British at the Battle of New Orleans. Six hundred of the US troops are African-American.

An Allied army, led by Britain's Duke of Wellington, defeats Napoleon at the Battle of Waterloo.

Relying largely on fossils to identify strata, civil engineer William Smith publishes a geologic map of England, Wales and part of Scotland, the largest region so far documented. Four years later, Smith will be arrested and sent to debtors' prison.

Ada, Lady Lovelace, is Born

Shaka becomes ruler of the Zulu Kingdom; his disciplined and mobile army conquers many peoples of southeastern Africa.

Augustin Fresnel demonstrates with his mirror experiment the wave nature of light. He also gives an explanation of polarization.

Nic phore Ni pce succeeds in making negative photographs of camera images on paper coated with silver chloride, but cannot adequately "fix" them to stop them from darkening all over when exposed to light for viewing.

James Monroe becomes the fifth president of the United States.

Russian biologist Heinz Christian Pander studies the chick embryo and discovers the germ layers (i.e., three distinct regions of the embryo that give rise to the specific organ systems). Because of these findings, he is considered by many to be the "founder of embryology".

Thomas Young and Augustin Fresnel demonstrated that light waves must be transverse vibrations.

painting by Caspar David Friedrich: Wanderer above the Sea of Fog (German: Der Wanderer über dem Nebelmeer), also known as Wanderer Above the Mist or Mountaineer in a misty Landscape, currently resides in the Kunsthalle Hamburg in Hamburg, Germany. Wanderer above the Sea of Fog is true to the Romantic style and Friedrich's style in particular. Gorra's (2004) analysis was that the message conveyed by the painting is one of Kantian self-reflection, expressed through the wanderer's gazings into the murkiness of the sea of fog.

The US flag is modified to have twenty stars, reflecting the addition of five new states: Indiana, Louisiana, Mississippi, Ohio, and Tennessee. The number of stripes is returned to thirteen (both to symbolize the original thirteen states and to avoid having the number of stripes get so large that the flag would seem pink). From this point on, the US flag will have the same overall design, with changes in the number of stars used to denote the addition of new states.

Painting by Théodore Géricault: The Raft of the Medusa (French: Le Radeau de la Méduse) was completed when the artist was 27. The work has become an icon of French Romanticism. At 16' 1" × 23' 6", it is an over-life-size painting that depicts a moment from the aftermath of the wreck of the French naval frigate Méduse, which ran aground off the coast of today's Mauritania on 2 July 1816. On 5 July 1816, at least 147 people were set adrift on a hurriedly constructed raft; all but 15 died in the 13 days before their rescue, and those who survived endured starvation and dehydration and practised cannibalism. Géricault chose to depict this event in order to launch his career with a large-scale uncommissioned work on a subject that had already generated great public interest. The event fascinated him, and before he began work on the final painting, he undertook extensive research and produced many preparatory sketches. He interviewed two of the survivors and constructed a detailed scale model of the raft. He visited hospitals and morgues where he could view, first-hand, the colour and texture of the flesh of the dying and dead. As he had anticipated, the painting proved highly controversial at its first appearance in the 1819 Paris Salon, attracting passionate praise and condemnation in equal measure. However, it established his international reputation, and today is widely seen as seminal in the early history of the Romantic movement in French painting.

The US flag is modified to have twenty-one stars, reflecting the addition of one new state: Illinois.

The Canadian government refuses to cooperate with the American government in the apprehension of fugitive slaves living in Canada. Consequently Canada becomes the destination for 40,000 fugitive slaves from United States between 1819 in 1861.

The SS Savannah was an American hybrid sailing ship/side-wheel steamer built in 1818. She becomes the first steamship to cross the Atlantic Ocean, a feat accomplished during May–June, 1819. The Savannah was converted back into a sailing ship after returning from Europe. She was wrecked of Long Island in 1821.

The United States purchases Florida from Spain.

The US flag is modified to have twenty-three stars, reflecting the addition of two new states: Alabama and Maine.

Debate over slavery in the US heats up; The Missouri Compromise admits Maine into the Union as a free state, with Missouri to enter the next year as a slave state. Slavery is banned north of the 36 30' line of latitude in the Louisiana Territory.

Missouri Compromise Missouri is admitted to the Union as a slave state, Maine as a free state. Slavery is forbidden in any subsequent territories north of latitude .

The first Christian missionaries arrived in the Hawaiian Islands.

Gideon Mantell discovers, in England, a fossil trunk of a tree resembling that of a tropical palm, evidence of a much warmer climate.

André-Marie Ampère formulates one of the basic laws of electromagnetism, the right-hand rule for the influence of an electric current on the magnet and demonstrates that two wires that are carrying an electric current will attract or repel each other, depending on whether the occurrence are in opposite where the same directions.

Dominique-François Arago discovers the magnetic effect of electricity passing through a copper wire, demonstrating that iron is not necessary for magnetism.

Augustin-Jean Fresnel invents the so-called Fresnel lens, a lens used in lighthouses.

The science of electrodynamics is born with the announcement of Hans Christian Ørsted's discovery of electromagnetism.

The Arithmometer was the first commercially successful mechanical calculator patented

Painting by John Constable: The Hay Wain depicts a rural scene on the River Stour between the English counties of Suffolk and Essex. It hangs in the National Gallery in London and is regarded as "Constable's most famous image" and one of the greatest and most popular English paintings. Painted in oils on canvas, the work depicts as its central feature three horses pulling what in fact appears to be a wood wain or large farm cart across the river. Willy Lott's Cottage, also the subject of an eponymous painting by Constable, is visible on the far left. The scene takes place near Flatford Mill in Suffolk, though since the Stour forms the border of two counties, the left bank is in Suffolk and the landscape on the right bank is in Essex.

Michael Faraday invents the electric motor and generator.

The US flag is modified to have twenty-four stars, reflecting the addition of one new state: Missouri.

Slave Revolt: South Carolina Freed slave Denmark Vesey attempts a rebellion in Charleston. Thirty-five participants in the ill-fated uprising are hanged.

William Buckland publishes an account of how ancient hyenas lived and fed in Kirkdale Cave, based on their fossil remains. This is one of the first descriptions of living habits based on fossil evidence.

Omalius d'Halloy names the Cretaceous System, after massive chalk deposits. This time period will later be identified with the last dinosaurs and the first flowering plants.

William Conybeare and William Phillips name the Carboniferous System, a period associated with coal deposits. This time period will also become known as the Mississippian and Pennsylvanian Periods in the United States.

Charles Babbage takes first steps in the construction of machines that would compute numbers

Nic phore Ni pce abandons silver halide photography as hopelessly impermanent and tries using thin coatings of Bitumen of Judea on metal and glass. He creates the first fixed, permanent photograph, a copy of an engraving of Pope Pius VII, by contact printing in direct sunlight without a camera or lens. It is later destroyed; the earliest surviving example of his "heliographic process" is from 1825.

Slavery is abolished in Chile.

William Buckland finds a skeleton covered in ocher. Called the Red Lady, it will later be identified as Cro-Magnon (and male).

Physicist Michael Faraday (1791-1867) describes the liquification of chlorine in On fluid chlorine. Faraday finds that gasses of certain kinds, when kept under constant pressure, will condense until they cool. This latter discovery ushers in the beginning of mechanical methods of refrigeration.

Small-scale drilling for oil begins at Baku, a Russian port city on the west coast of the Caspian Sea, now the capital of Azerbaijan. The drilling marks the beginning of the modern petroleum industry, and by 1900 nearly half the world's oil will come from the Baku oil fields.

Mexico outlaws slavery. This decision creates the incentive for Anglo Texans to fight for independence in 1835-1836.

Mexico becomes a republic, three years after declaring independence from Spain.

William Buckland publishes Notice on the Megalosaurus ("giant lizard"), the first dinosaur fossil to be described and named, although the term "dinosaur" doesn't yet exist. Buckland also announces the discovery of the first fossil mammal from the Mesozoic.

Réflexions sur la puissance motrice du feu (On the motive power of fire) by Nicolas Léonard Sadi Carnot shows that work is done as heat passes from a high temperature to a low temperature; defines work; hints at the second law of thermodynamics; and suggests internal combustion engines.

Nic phore Ni pce makes the first durable, light-fast camera photograph, similar to his surviving 1826-1827 photograph on pewter but created on the surface of a lithographic stone. It is destroyed in the course of subsequent experiments.

The Diary of Samuel Pepys is published in Britain. Pepys (1633-1703) had been a secretary of the Admiralty, a member of Parliament, and President of the Royal Society, and his Diary presents an important and entertaining picture of London during the Restoration period.

John Quincy Adams becomes the sixth president of the United States.

Father John MacEnery starts digging in Kent's Cave in Devon. He'll eventually find human remains in the same layer as those of extinct mammals, a finding that will be dismissed by Buckland.

Gideon Mantell publishes Notice on the Iguanodon, the second description of a dinosaur and the first description of an herbivorous fossil reptile.

The Erie Canal (from Albany to Buffalo, New York) opens on October 26, connecting the Midwestern U.S. with the Atlantic Ocean, via the Great Lakes, and stimulating the development of Fort Dearborn (know today as Chicago), Cleveland and Columbus Ohio, and upstate New York cities like Rochester, Syracuse and Little Falls.

The first passenger steam railway opens, between Stockton and Darlington, England.

The Last of the Mohicans, by James Fenimore Cooper, is published.

Photograph by Joseph Ni pce: View from the Window at Le Gras, the world's first permanent photograph.

The first photographic images produced by Joseph-Nicéphore Ni pce

Theory of systems of rays by William Rowan Hamilton is a unification of the study of optics through the principle of "varying action". It contains his correct prediction of conical refraction. When his prediction is verified, he becomes a well-known and is knighted.

While studying the behavior of fluids under a microscope, botanist Robert Brown (1773-1858) discovers what is today called "Brownian motion".

Adolphe Brongniart publishes Prodrome d'une histoire des Végétaux Fossils, a study of fossil plants. He outlines four distinct phases in plant prehistory: (1) primitive plants from the Coal Measures, (2) the first conifers, (3) domination by cycads and conifers, and (4) flowering plants.

Mary Anning discovers Britain's first recognized pterosaur fossil. (Gideon Mantell has already found pterosaur remains, but has attributed them to a bird).

Chemist Friedrich Wöhler (1800-1882) synthesizes the organic compound urea, a feat previously thought impossible because of the vital force thought to be a part of organic substances.

Chemist James Smithson (1765-1829) bequeaths £100,000 to found the Smithsonian Institution in Washington, D.C. The Institution will be founded in 1846.

Andrew Jackson becomes the seventh president of the United States.

Slavery abolished in Mexico.

Philippe-Charles Schmerling discovers a Neanderthal fossil, the partial cranium of a small child. The fossil will not be accurately identified as Neanderthal, however, for a century, though Charles Lyell will illustrate it in Antiquity of Man in 1863.

Jules Desnoyers names the Quaternary System, a time in which humans have lived.

Gustave-Gaspard Coriolis coins the term KINETIC ENERGY in On the calculation of mechanical action.

Joseph Henry shows that passing an electric current through a wire wrapped into coils produces a greater magnetic field than is produced when that same current is passed through a straight wire, and that an insulated wire wrapped around an iron core can produce a powerful electromagnet.

The first steam locomotive to operate on a U.S. railroad begins service between Carbondale and Honesdale, Pennsylvania. The engine, "The Stourbridge Lion", has been imported from the Stephenson Engine Works in London.

Painting by Eugène Delacroix: Liberty Leading the People (French: La Liberté guidant le peuple) commemorates the July Revolution of 1830, which toppled King Charles X of France. A woman personifying the concept and the Goddess of Liberty leads the people forward over a barricade and the bodies of the fallen, holding the flag of the French Revolution — the tricolour flag, which remains France's national flag — in one hand and brandishing a bayonetted musket with the other. The figure of Liberty is also viewed as a symbol of France and the French Republic known as Marianne. By the time Delacroix painted Liberty Leading the People, he was already the acknowledged leader of the Romantic school in French painting.

On April 6, the Church of Jesus Christ of Latter-Day Saints is founded by Joseph Smith Jr. (1805-1844), in Fayette, New York. In Palmyra, New York, The Book of Mormon is published for the first time; Smith has translated it, he says, from golden tablets he found buried near Palmyra.

The first wagon trains to cross the Rocky Mountains arrived in California.

The U.S. Congress passes the Indian Removal Act.

The world's population tops 1,000,000,000 (it had been roughly 750 million only 50 years earlier).

Georg Goldfuss announces that he sees "hairs" on a pterosaur fossil. This outlandish assertion will be supported by later finds.

The first edition of Birds of America, by the painter and ornithologist John James Audubon (1785-1851), appears.

Nat Turner leads a slave rebellion in Southampton, Virginia, killing at least 57 whites. Hundreds of black slaves are killed in retaliation.

Alabama makes it illegal for enslaved or free blacks to preach.

In Boston, William Lloyd Garrison founds the abolitionist newspaper, The Liberator, signaling a dramatic shift in the antislavery movement. In the previous decades, it had centered in the South and favored a combination of compensated emancipation and colonization of freed slaves back to Africa. In the 1830s, the abolitionist movement becomes the dominant voice among antislavery advocates. Abolitionists demand the immediate end to slavery, which they consider to be a moral evil, without compensation to slaveowners.

Nat Turner, a literate slave who believes he is chosen to be the Moses of his people, instigates a slave revolt in Virginia. He and his followers kill 57 whites, but the revolt is unsuccessful and up to 200 slaves are killed. After an intense debate, the Virginia legislature narrowly rejects a bill to emancipate Virginia's slaves. The widespread fear of slave revolts, compounded by the rise of abolitionism, leads legislatures across the South to increase the harshness of their slave codes. Also, expressions of anti-slavery sentiment are suppressed throughout the South through state and private censorship.

North Carolina enacts a statute that bans teaching enslaved people to read and write.

Slave Revolt: Virginia Slave preacher Nat Turner leads a two-day uprising against whites, killing about 60. Militiamen crush the revolt then spend two months searching for Turner, who is eventually caught and hanged. Enraged Southerners impose harsher restrictions on their slaves.

Independently, Michael Faraday and Joseph Henry discover that electricity can be induced by changes in a magnetic field (electromagnetic induction), a discovery leading to the first electric generators.

Encouraged by Cambridge professor William Whewell, the Royal Society of London commissions reports of manuscripts received. This move will later be cited as the beginning of the peer-review process.

In Vienna, kitchen apprentice Franz Sacher, 16, creates what comes to be known as Sachertorte, for a dinner in honor of Austria's Prince Klemens Wenzel von Metternich.

Oberlin College is founded in Ohio. It admits African-Americans. By 1860, one third of its students are black.

Electric telegraph invented by Samuel Morse.

Gideon Mantell finds the first fossil Hylaeosaurus, an ankylosaur. He will formally name it the following year, making it the third identified dinosaur species.

In November, the New York and Harlem Railroad begins service, and heralds the start of rapid mass transit in New York City. Two horse-drawn rail cars operate every 15 minutes between 14th Street and Prince Street, along the Bowery. The fare is 25 cents.

The American Anti-Slavery Society is established in Philadelphia.

The British Parliament abolishes slavery in the entire British Empire.

Solicitor André Brouillet discovers a reindeer bone with an engraved illustration of two female deer in Chaffaud Cave. He assumes the carving was made by the Celts. Later research will show the artwork to be about 13,000 years old.

The English term SCIENTIST is coined by the philosopher William Whewell (1794-1866 ), during a meeting of the British Association for the Advancement of Science.

In correspondence, Michael Faraday and William Whewell introduce the terms ELECTRODE, ANODE, ION, CATHODE, ANION, CATION, ELECTROLYTE, and ELECTROLYSIS.

Ada Lovelace Meets Charles Babbage

South Carolina bans the teaching of blacks, and slave or free, in its borders.

Federal troops are ordered to put down a riot by workers along the Chesapeake and Ohio Canal. It is the first time federal troops have been used to settle a labor battle in the United States.

Based on a vertebrae and other fragments from Alabama, anatomist Richard Harlan identifies Basilosaurus as a fossil reptile. It will later be identified as a fossil whale.

Friedrich von Alberti names the Triassic System. This time period will later by identified with the first dinosaurs.

Mathematician Carl Friedrich Gauss (1777-1855) shows that the origin of the Earth's magnetic field must lie deep inside the Earth. He makes use of the measurements of the magnetic field made by the physicist Paul Erman in 1828.

H rcules Florence, a French-Brazilian painter and the isolate inventor of photography in Brazil, coined the word photographie for his technique, at least four years before John Herschel coined the English word photography.

Charles Babbage invents the "analytical engine" — the forerunner of the modern computer.

Painting by Caspar David Friedrich: The Stages of Life (German: Die Lebensstufen) is an allegorical oil painting completed just five years before his death. This picture, like many of his works, forms a meditation both on his own mortality and on the transience of life. The painting is set on a sea shore and shows in the foreground an aged man with his back turned to the viewer, walking towards two adults and two children on a hilltop overlooking a harbour. The figures are echoed by five ships shown in the harbour, each at a different distance from the shore, an allegorical reference to the different stages of human life, to the end of a journey, to the closeness of death. The figures have been identified as Friedrich and his family. The aged man is the artist himself, the small boy is his young son Gustav Adolf, the young girl is his daughter Agnes Adelheid, the older girl is his daughter Emma, and the man in the top hat is his nephew Johann Heinrich.}The Stages of Life (German: Die Lebensstufen) is an allegorical oil painting of 1835 by the German Romantic landscape painter Caspar David Friedrich. Completed just five years before his death, this picture, like many of his works, forms a meditation both on his own mortality and on the transience of life. The painting is set on a sea shore and shows in the foreground an aged man with his back turned to the viewer, walking towards two adults and two children on a hilltop overlooking a harbour. The figures are echoed by five ships shown in the harbour, each at a different distance from the shore, an allegorical reference to the different stages of human life, to the end of a journey, to the closeness of death. The figures have been identified as Friedrich and his family. The aged man is the artist himself, the small boy is his young son Gustav Adolf, the young girl is his daughter Agnes Adelheid, the older girl is his daughter Emma, and the man in the top hat is his nephew Johann Heinrich.

Texas declares its independence from Mexico. In its constitution as an independent nation, Texas recognizes slavery and makes it difficult for free blacks to remain there.

Southern states expel abolitionists and forbid the mailing of antislavery propaganda.

The first volume of La Dèmocracie en Amèrique (Democracy in America), by Alexis de Tocqueville (1805-1859), is published in France. Tocqueville, a historian and politician and member of the French aristocracy, writes about the American people and their institutions, based on his 9 months of travels through the United States and eastern Canada in 1831-1832.

Adam Sedgwick names the Cambrian System, recognizing the first rich assemblage of fossils in the rock record. Roderick Murchison names the Silurian System. He believes (not entirely accurately) that the Silurian predates the fossils of land plants, and consequently any economically valuable coal seams. Murchison and Sedgwick will later develop a bitter priority dispute over these systems.

Gustave-Gaspard Coriolis's Mémoire sur les equations du mouvement relatif des sytèms de corps (Memoir on the equations of relative movement of systems of bodies) describes the Coriolis effect: the deflection of a moving body caused by Earth's rotation. The Coriolis effect is important in the study of wind. However, the claim that the Coriolis effect determines the direction water rotates when going down a drain is a myth.

Henry Fox Talbot produces durable silver chloride camera negatives on paper and conceives the two-step negative-positive procedure used in most non-electronic photography up to the present.

Painting by : View from Mount Holyoke, Northampton, Massachusetts, after a Thunderstorm, commonly known as The Oxbow, is a seminal landscape painting by Thomas Cole, founder of the Hudson River School. The painting depicts a Romantic panorama of the Connecticut River Valley just after a thunderstorm. It has been interpreted as a confrontation between wilderness and civilization.

The US flag is modified to have twenty-five stars, reflecting the addition of one new state: Arkansas.

Davy Crockett killed, as Texans are defeated by the Mexican army at the Alamo.

In Paris, the Arc de Triomphe is completed. The arch was ordered built by Napoleon in 1806.

Texas gains independence from Mexico after winning the battle of San Jacinto.

Mappa Selenographica, a map of the moon's surface, is produced by the astronomers Wilhelm Beer (1797-1850) and Johann Heinrich von Mädler (1794-1874). The two will also be the first to map Mars.

Henry Riley and Samuel Stutchbury name Thecodontosaurus, the fourth named dinosaur species.

Elements of Botany, by the naturalist Asa Gray (1810-1888), is published. It is the first botanical textbook.

German biologist Theodor Schwann discovers the enzyme pepsin — the first known animal enzyme. He reports the discovery in Über das Wesen der Verdauungsprozesses (On the essence of digestion).

John Frederic Danielle invents the Daniell cell, the first reliable source of electric current, based on the interactions of copper and zinc.

Alonzo D. Phillips, a shoemaker from Springfield, Massachusetts, patents the phosphorous match.

Twice-told Tales, by Nathaniel Hawthorne, is published and is an immediate best-seller.

Daguerreotype by Louis Daguerre: Still life with plaster casts is the earliest, reliably dated daguerreotype.

The US flag is modified to have twenty-six stars, reflecting the addition of one new state: Michigan.

Martin Van Buren becomes eighth president of the United States.

William IV, King of Great Britain, dies.

Hermann von Meyer names Plateosaurus, the fifth named dinosaur species.

Louis Agassiz presents the theory of the Ice Age at a meeting of the Swiss Society of Natural Sciences. The shocked audience reacts with hostility.

Mathematician Semèon Denis Poisson (1781-1840) publishes Recherches sur la Probabilitè des Jugements. Poisson's book described what is now known as the Poisson Distribution, for the first time.

Charles Babbage published a paper describing a mechanical computer that is now known as the Analytical Engine

Samuel F. B. Morse sends his first message by electric telegraph — "What hath God wrought!" — on an experimental line between Washington DC and Baltimore, Maryland.

The Seraphim and Other Poems, by Elizabeth Barrett Browning (1806-1861), is published.

Daguerreotype by Louis Daguerre: The earliest reliably dated photograph of people, taken one spring morning in 1838 from the window of the Diorama, where Daguerre lived and worked. It bears the caption huit heure du matin (8 a.m.). Though it shows the busy Boulevard du Temple, the long exposure time (about ten or twelve minutes) meant that moving traffic cannot be seen; however, the bootblack and his customer at lower left remained still long enough to be distinctly visible. The building signage at the upper left shows that the image is laterally (left-right) reversed, as were most daguerreotypes.

Coronation of Victoria as queen of Great Britain.

Chemist Jöns Jakob Berzelius (1779-1848) shows that the presence of iron is what enables blood to absorb as much oxygen as it does.

The word PROTEIN first appears in the chemical literature in a paper by G. J. Mulder. The term, however, was invented by J. J. Berzelius.

The S.S. Sirius and the S. S. Great Western are the first ships powered entirely by steam to cross the Atlantic. Both ships are designed by engineer Isambard Kingdom Brunel (1806-1859).

Voices of the Night, the first book of poems by Henry Wadsworth Longfellow (1807-1882), is published.

La Amistad was a 19th-century two-masted schooner, owned by a Spaniard living in Cuba. It became renowned in July 1839 for a slave revolt by Mende captives, who had been enslaved in Sierra Leone, and were being transported from Havana, Cuba to their purchasers' plantations. The African captives took control of the ship, killing some of the crew and ordering the survivors to sail the ship to Africa. The Spanish survivors secretly maneuvered the ship north, and La Amistad was captured off the coast of Long Island by the brig USS Washington. The Mende and La Amistad were interned in Connecticut while federal court proceedings were undertaken for their disposition. The owners of the ship and Spanish government claimed the slaves as property; but the US had banned the African trade and argued that the Mende were legally free. Because of issues of ownership and jurisdiction, the case gained international attention. Former president John Quincy Adams argued on behalf of the slaves when the appeal was brought before the U.S. Supreme Court, which eventually determined the Africans to be free men. The case became a symbol in the United States in the movement to abolish slavery.

Sultan Abdulmecid I implemented the Tanzimat reforms in an attempt to modernize the Ottoman Empire and strengthen it against European powers. The reforms included changes to the legal system, education, and the military, and were influenced by western ideas.

In response to the British opium trade, Lin Zexu wrote a letter to Queen Victoria, urging her to end the opium trade: We find that your country is sixty or seventy thousand li from China. Yet there are barbarian ships that strive to come here for trade for the purpose of making a great profit. The wealth of China is used to profit the barbarians. That is to say, the great profit made by barbarians is all taken from the rightful share of China. By what right do they then in return use the poisonous drug to injure the Chinese people? Even though the barbarians may not necessarily intend to do us harm, yet in coveting profit to an extreme, they have no regard for injuring others. Let us ask, where is your conscience? The letter to the Queen never reached her. Belatedly, it was delivered and published in The Times of London.

Lin Zexu was a Chinese scholar-official of the Qing dynasty best known for his role in the First Opium War of 1839 42. In March 1839, Lin arrived in Guangdong Province to take measures that would eliminate the opium trade. He was a formidable bureaucrat known for his competence and high moral standards, with an imperial commission from the Daoguang Emperor to halt the illegal importation of opium by the British. Upon arrival, he made changes within a matter of months. He arrested more than 1,700 Chinese opium dealers and confiscated over 70,000 opium pipes. He initially attempted to get foreign companies to forfeit their opium stores in exchange for tea, but this ultimately failed. Lin resorted to using force in the western merchants' enclave. A month and a half later, the merchants gave up nearly 1.2 million kg (2.6 million pounds) of opium. Beginning 3 June 1839, 500 workers laboured for 23 days to destroy it, mixing the opium with lime and salt and throwing it into the sea outside of Humen Town. Lin composed an elegy apologising to the gods of the sea for polluting their realm.

The First Opium War between Britain and China occurs between 1839 and 1842, triggered when Chinese officials attempt to prevent the sale of narcotics (opium) to the Chinese people by the British East India trading Company. The British respond by bringing in gunboats and shelling Chinese coastal cities.

The process of vulcanization, developed by Charles Goodyear, makes possible the commercial use of rubber.

Czech scientist Jan Evangelista Purkyně (also written Johannes Evangelist Purkinje) coins the word PROTOPLASM to describe the contents of a cell.

Roderick Murchison and Adam Sedgwick name the Devonian System.

The English scientist Michael Faraday concludes from his work on electromagnetism that, contrary to scientific opinion of the time, the divisions between the various kinds of electricity are illusory. He also establishes that magnetism can affect rays of light, and that there is an underlying relationship between the two phenomena.

Louis-Jacques-Mand Daguerre perfects and presents the daguerreotype process as the first publicly available photographic process (which for nearly twenty years was also the one most commonly used). To make the image, a daguerreotypist would polish a sheet of silver-plated copper to a mirror finish, treat it with fumes that made its surface light sensitive, expose it in a camera for as long as was judged to be necessary, which could be as little as a few seconds for brightly sunlit subjects or much longer with less intense lighting; make the resulting latent image on it visible by fuming it with mercury vapor; remove its sensitivity to light by liquid chemical treatment, rinse and dry it, then seal the easily marred result behind glass in a protective enclosure.

Henry Fox Talbot publicly introduces the paper-based process he worked out in 1835, calling it "photogenic drawing", but it requires much longer exposures than the daguerreotype and the results are not as clear and detailed.

John Herschel introduces hyposulfite of soda (now known as sodium thiosulfate but still nicknamed "hypo") as a highly effective fixer for all silver-based processes. He also makes the first glass negative.

Sarah Anne Bright creates a series of photograms, six of which are known to still exist. These are the earliest surviving photographic images created by a woman.

Although a bicycle consisting of a frame and wheels has existed for years, blacksmith Kirkpatrick MacMillan (1813-1878), introduces the first bicycle in its modern form, with brakes and pedals. The bike has iron tires and weighs nearly 60 pounds.

Inventor Erastus Brigham Bigelow (1814-1879) introduces the power loom in Massachusetts.

The first electric clock is built by physicist Carl August Steinheil (1801-1870).

Anna, the Duchess of Bedford (1788-1861), introduces the ritual of afternoon tea in Britain, although tea has been available in England since the late 1600s.

The polka makes its U.S. debut, introduced by the ballerina Fanny Elssler (1810-1884), who had brought the dance to Paris in 1834.

The saxophone is invented in Belgium, by the 26-year old instrument maker Antoine Joseph Sax (1814-1894).

Alexandre-Edmond Becquerel shows that light can initiate chemical reactions that produce an electric current.

First American patent issued in photography to Alexander Wolcott for his camera.

The first postage stamp, called the "Penny Black" and bearing the image of Queen Victoria, is issued in England.

The oil-immersion microscope is invented by Giovanni Battista Amici (1786-1863), a former professor of mathematics who is now the director of the observatory at the Royal Museum in Florence, and an astronomer to the Grand Duke of Tuscany. The objective lens of this microscope is immersed in a drop of oil which sits on top of the object under study; this helps to minimize aberrations caused by the light source.

William Henry Harrison becomes ninth president of the United States; dies one month after inauguration.

The Berlin Zoo opens, when Friedrich Wilhelm IV, the King of Prussia, donates his pheasant gardens and exotic animal colection to the citizens of Berlin.

The New York State Fair is held for the first time, in Syracuse, New York. The Fair is the first in the tradition of U.S. state fairs with agricultural and domestic themes.

Self-Reliance, by Ralph Waldo Emerson (1803-1882) [essay II in Essays: First Series] is published.

The first novel in the series called "Leatherstocking Tales", The Deerslayer, by James Fennimore Cooper (1789-1851), is published

In London, the periodical Punch begins publication.

The U.S.S. Creole, a ship carrying slaves from Virginia to Louisiana, is seized by the slaves on board and taken to Nassau, where they are free.

John Tyler becomes tenth president of the United States.

The first centralized government bureau of statistics is founded in Belgium by the mathematician Lambert Adolphe Jacques Quetelet (1781-1840).

Roderick Murchison names the Permian System.

William Smith's nephew John Phillips formally proposes the geologic eras Paleozoic, Mesozoic and Cainozoic (Cenozoic).

Charles Thomas Jackson (1805-1880) discovers the anesthetic properties of ether.

William Henry Talbot patents the Calotype process, the first negative-positive process making possible the first multiple copies.

Henry Fox Talbot introduces his patented calotype (or "talbotype") paper negative process, an improved version of his earlier process that greatly reduces the required exposure time.

In Paris, street lights made from arc lamps are demonstrated.

In May, Edgar Allan Poe's (1809-1849) story "The Masque of the Red Death" appears in Graham's Magazine.

Frederick Douglass leads a successful campaign against Rhode Island's proposed Dorr Constitution, which would have continued the prohibition on black male voting rights.

In Prigg v. Pennsylvania, the U.S. Supreme Court upholds the Fugitive Slave Law of 1793, stating that slaveowners have a right to retrievetheir "property." In so doing, the court rules that Pennsylvania's anti-kidnapping law is unconstitutional. At the same time, the Supreme Court declares that enforcement of the Fugitive Slave Lawis a federal responsibility in which states are not compelled to participate. Between 1842 and 1850, nine Northern states pass new personal liberty laws which forbid state officials from cooperating in the return of alleged fugitive slaves and bar the use of state facilities for that purpose.

Slavery is abolished in Uruguay.

The Virginia Legislature votes against abolishing slavery.

In Commonwealth v. Hunt, a case involving the Boston Journeyman Bootmakers Society, the Chief Justice of the Massachusetts Supreme Court ruled that trade unions are legal. The ruling revises the common law that treated such unions as criminal conspiracies.

The Massachusetts State Legislature enacts a child labor law that limits the working hours of children under 12 years-old to 10 hours per day.

P. T. Barnum lures crowds of thousands to see his "Feejee Mermaid."

Richard Owen names Cetiosaurus, the sixth named dinosaur species.

Die Thierchemie, by chemist Baron Justus von Liebig (1803-1873), is published, and the science of biochemistry begins.

The term DINOSAUR is coined by Richard Owen (1804-1892) to describe a class of animals that we now believe were dominant on the Earth for approximately 175 million years.

Based on Agassiz's Ice Age theory, self-taught science enthusiast Charles MacLaren publishes a newspaper article explaining that substantial ice sheets in the northern hemisphere would have lowered global sea level.

German physician and physicist Julius Robert Mayer is the first to state the law of conservation of energy, noting specifically that heat and mechanical energy are two aspects of the same thing.

On the uniform motion of heat in homogeneous solid bodies, by William Thomson, aka Lord Kelvin (1824-1907), is published. Thomson's concern with the physics of cooling bodies will draw him into debates concerning the age of the Earth. In 1846 he calculates that the Earth can be no more than 100 million years old.

The change in the observed frequency of waves emitted from a source, moving relative to the observer, is described by Christian Johann Doppler (1803-1853). This phenomenon is now known as the Doppler Effect.

In London, The Economist and Sunday News of the World begin publication.

In Dresden, Richard Wagner's opera Der fliegende Holländer is premiered.

Sequoyah, Cherokee Indian leader, creates Cherokee syllabary and develops the first written form of a native North American language.

Congress grants S. F. B. Morse $30,000 to build the first telegraph line (Washington to Baltimore).

Louis Agassiz completes Les Poissons Fossiles describing fossil fish of the world. This single monograph increases tenfold the formally described vertebrates known to science.

That the nervous system uses electricity in communicating between different parts of the body is demonstrated by Emil Heinrich du Bois-Reymond (1818-1896). He founds the field of electrophysiology.

John Stuart Mill publishes Logic.

James Prescott Joule determines the mechanical equivalent of heat by measuring the rise in temperature produced in water by stirring it.

Jerome Increase Case, a 24 year-old farmer from Oswego County, New York, introduces the J. I. Case Threshing Machine. The J. I. Case Company will manufacture farm equipment and will become the largest thresher producer in the world.

The first tunnel under the Thames opens on March 25, built by Isambard Kingdom Brunel (1806-1859). {a]The Thames Tunnel{/a} connects Rotherhithe and Wapping, London. Although it was a triumph of civil engineering, the Thames Tunnel was not a financial success. It had cost a fortune to build — £454,000 to dig and another £180,000 to fit out — far exceeding its initial cost estimates. Proposals to extend the entrance to accommodate wheeled vehicles failed owing to cost, and it was only used by pedestrians. It became a major tourist attraction, attracting about two million people a year, each paying a penny to pass through.

In England, the Young Men's Christian Association (YMCA) is founded by George Williams (1821-1905).

The Open Door is an early calotype, included in The Pencil of Nature, the first commercially published book to be illustrated with photographs.

The Pencil of Nature, published in six installments between 1844 and 1846, was the "first photographically illustrated book to be commercially published" or "the first commercially published book illustrated with photographs". It was wholly executed by the new art of Photogenic Drawing, without any aid whatever from the artist's pencil and regarded as an important and influential work in the history of photography. Written by William Henry Fox Talbot and published by Longman, Brown, Green & Longmans in London, the book detailed Talbot's development of the calotype process and included 24 calotype prints, each one pasted in by hand, illustrating some of the possible applications of the new technology. Since photography was still very much a novelty and many people remained unfamiliar with the concept, Talbot felt compelled to insert the following notice into his book: The plates of the present work are impressed by the agency of Light alone, without any aid whatever from the artist's pencil. They are the sun-pictures themselves, and not, as some persons have imagined, engravings in imitation.

In Hartford, Connecticut, dentist Horace Wells (1815-1848) uses nitrous oxide as an anesthetic; he is the first to do so.

Scientific American is founded by Alfred Beach (1826-1896). The first issue is published on August 28. The publication, in newspaper format, presents science for the general reader.

Edgar Allan Poe's "The Raven" appears in the New York Evening Mirror. Poe's collection The Raven and Other Poems is published.

The US flag is modified to have twenty-seven stars, reflecting the addition of one new state: Florida.

Frederick Douglass publishes his autobiography, The Life and Times of Frederick Douglass.

James K. Polk becomes eleventh president of the United States.

Texas is annexed by the United States.

The Irish potato famine begins, one of the century's worst natural disasters. One million citizens starve to death, and one million others emigrate, mostly to the United States

The School of Medicine in Paris creates a gallery of comparative anatomy.

Michael Faraday relates magnetism to light after finding the magnetic field effects the polarization of light in crystals. He proposes that light may be waves of electromagnetism. He also describes the phenomena of diamagnetism and paramagnetism, which he explains in terms of his concept of a magnetic field.

Francis Ronalds invents the first successful camera for continuous recording (the first "movie camera") of the variations in meteorological and geomagnetic parameters over time. A copy of Ronalds' paper describing describing his device maybe obtained HERE.

The bridge spanning the Allegheny River, at Pittsburgh, designed by engineer John Augustus Roebling (1806-1869), opens in May. It is the first wire cable suspension aqueduct bridge in the world.

The US flag is modified to have twenty-eight stars, reflecting the addition of one new state: Texas.

Mexican-American War Defeated, Mexico yields an enormous amount of territory to the United States. Americans then wrestle with a controversial topic: Is slavery permitted in the new lands?

The first professional baseball game is played, in Hoboken, New Jersey.

The Mexican War (1846-48) between the United States and Mexico results in the United States taking possession of California and much of the Southwest, which had been Mexican territory.

The Oregon Treaty delineates border between the United States and Canada.

Karl Wilhelm Von Nägeli shows that plant cells are not formed as buds from the surfaces of existing cells, as was proposed by Theodore Schwann.

Joseph Leidy identifies in pork the parasite that causes trichinosis, a potentially fatal human disease.

James Prescott Joule discovers that the length of an iron bar changes slightly when the bar is magnetized.

Nitroglycerine is discovered by chemist Ascanio Sobrero (1811-1870), although he uses to term "pyroglycerine". Because of the risks involved in its production, it will not be manufactured commercially for more than a decade.

The lock-stitch sewing machine is patented by Elias Howe (1819-1867).

The US flag is modified to have twenty-nine stars, reflecting the addition of one new state: Iowa.

The North Star, an abolitionist newspaper, begins publication in Rochester, New York. The paper is founded by escaped slave Frederick Douglass (1817-1895), with money he earned as a result of his autobiography.

Liberia is formed as a home for released American slaves.

Missouri bans the education of free blacks.

The Istanbul slave market is abolished.

The Factory Act is passed in Britain. It forbids women and children between the ages of 13 and 18 to work more than 10 hours per day.

The first United States postage stamps are issued

In his Account of a New Anesthetic Agent, obstetrician Sir James Simpson (1811-1870) argues that chloroform, a substance he discovered, is a better anesthetic than nitrous oxide or ether. Simpson has begun to use chloroform as an anesthetic in childbirth.

Über die Erhaltung der Kraft ("On the Conservation of Force"), by Hermann Ludwig von Helmholtz (1821-1894), is published. It articulates what later becomes known as the Conservation of Energy.

The rotary, or "lightning" printing press is patented by Richard March Hoe (1812-1886). It is used first by the Philadelphia Public Ledger.

Painting by Jean Auguste Dominique Ingres: Venus Anadyomene, now held at the Musée Condé, Chantilly, France. It is a female nude of the Venus Anadyomene type, showing the goddess Venus rising from the sea. Ingres began the painting in 1808 during his stay in Rome at the French Academy. The first preparatory drawings showed Venus in the Venus Pudica position, standing and covering her breasts with her hands. The pose was inspired by Botticelli's The Birth of Venus — Ingres visited Florence and the Uffizi in 1805 and could have seen the painting there. A drawing of 1806 then shows the goddess with her arms in the air and her hair in her hands, a pose the artist also used in his 1856 The Source. The painting remained in the planning stages until 1848, when he completed it as a commission from the banker and botanist Benjamin Delessert.

The US flag is modified to have thirty stars, reflecting the addition of one new state: Wisconsin.

Slavery is abolished in old French and Danish colonies.

Karl Marx publishes The Communist Manifesto, which asserts that revolution by the working classes will ultimately destroy capitalism.

Revolution breaks out across much of Europe; the Second Republic is proclaimed in France.

A Neanderthal skull is excavated from Forbes Quarry on the northern side of the Rock of Gibraltar. Over the next few decades, the skull will be stashed in a library cabinet in Gibraltar, dusted off and sent to London, accurately likened to the ancient skullcap from Neander Valley in Germany, nearly named Homo calpicus, and finally stored and largely forgotten in the Royal College of Surgeons.

The American Medical Association is founded in Philadelphia, with a mission "to promote the science and art of medicine and the betterment of public health."

An absolute scale of temperatures is proposed by William Thomson (1824-1907). Thomson will become Baron Kelvin of Largs, in 1892, and the scale will come to bear his name.

Armand Hippolyte Louis Fizeau suggests that light from a source of moving away from the observer will be shifted toward the red end of the spectrum, a phenomenon known as redshift. This is closely related to, but not exactly the same as, the Doppler effect.

Edmond Becquerel makes the first full-color photographs, but they are only laboratory curiosities: an exposure lasting hours or days is required and the colors are so light-sensitive that they sometimes fade right before the viewer's eyes while being examined.

The American Association for the Advancement of Science is founded. Joseph Henry (1797-1898), who had been appointed the first secretary of the Smithsonian in 1846, is the first secretary of the AAAS, which is modeled after The British Association for the Advancement of Science. The British Association has been in existence for 17 years.

The American Association for the Advancement of Science is established.

Henry David Thoreau's A week on the Concord and Merrimack Rivers and "Resistance to Civil Government" (often referred to as "Civil Disobedience") are published.

Painting by Gustave Courbet: The Stone Breakers (French: Les Casseurs de pierres) is a work of social realism, depicting two peasants, a young man and an old man, breaking rocks. The painting was first exhibited at the Paris Salon of 1850. It was destroyed during World War II, along with 154 other pictures, when a transport vehicle moving the pictures to the castle of Königstein, near Dresden, was bombed by Allied forces in February 1945.

Charles Lewis Reason becomes the first African-American college instructor when he is hired at predominantly white Free Mission College (later New York Central College) to teach Greek, Latin, French, and mathematics.

Harriet Tubman escapes from slavery and goes on to lead more than 300 slaves to freedom on the underground railroad.

Zachary Taylor becomes twelfth president of the United States.

The California gold rush begins as more than 100,000 people swarm to California to make their fortunes after gold is found there in 1848.

Showmen Moses Kimball and P. T. Barnum purchase the contents of the Peale Museum (established in 1784).

Based on a humerus 58 inches in circumference, Mantell names a new dinosaur species: Pelorosaurus, the first recognized sauropod.

Armand Hippolyte Louis Fizeau measures the velocity of light in error by measuring the time it takes for a beam of light to pass between the teeth of a rotating gear. The light is reflected by a mirror and stopped by the next tooth of the gear. The result, 315,000 km/se4c (196,000 miles/sec), is within 5% of today's accepted value.

In describing Sadi Carnot's theory of heat, published in 1824, William Thomson (1824-1907) uses the term THERMODYNAMICS.

The speed of light is measured by physicist Armand Hippolyte Louis Fizeau (1819-1896) to be approximately 186,000 miles per second.

A unmanned Montgolfier balloon is used to drop bombs on Venice. This is the first time a bombing has been conducted from the air.

Painting by Gustave Courbet: A Burial At Ornans (French: Un enterrement à Ornans, also known as A Funeral At Ornans) represents one of the major turning points of 19th-century French art. The painting records the funeral in September 1848 of his great-uncle in the painter's birthplace, the small town of Ornans. It treats an ordinary provincial funeral with unflattering realism, and on the giant scale traditionally reserved for the heroic or religious scenes of history painting. Its exhibition at the 1850–51 Paris Salon created an "explosive reaction" and brought Courbet instant fame. It is currently displayed at the Musée d'Orsay in Paris, France.

The Compromise of 1850 is introduced into Congress by Henry Clay as an omnibus bill designed to settle disputes arising from the conclusion of the Mexican War. It passes after Stephen Douglas divides the bill into several parts: California enters the Union as a free state; the slave trade (but not slavery) is abolished in Washington D.C.; the fugitive slave law is strengthened; and the Utah and New Mexico Territories are opened to slavery on the basis of popular sovereignty (allowing territorial voters to decide the issue without federa linterference).

Millard Fillmore becomes the thirteenth president of the United States, when Zachary Taylor dies in office.

German physicist Gustav Theodor Fechner discovers that an increase in the intensity of a stimulus does not produce a one-to-one increase in the intensity of sensation. Instead, the sensation seems to increase as the logarithm of the excitation.

Mathematician Bernard Bolzano's Paradoxien des Unendlichen is published, two years after the Bolzano's death. It is the first work to use the word "set" in a modern mathematical sense, and also treats infinite sets.

In Über die bewegende Kraft der Wärme, mathematical physicist Rudolf Julius Emanuel Clausius articulates what comes to be known as the Second Law of Thermodynamics. The law states that heat can only be transferred from a warmer body to a colder body. In 1865, he'll restate the Law, saying that in the closed system entropy always increases.

"Bibless overalls" made of canvas are sold by the 20 year-old Levi Strauss in San Francisco. Within three years he will switch to denim and dye his pants indigo blue.

The New York Times begins daily publication. The editor of the Times is Henry J. Raymond.

The Great Exhibition opens in London, housed at the Hyde Park Pavilion (the "Crystal Palace" designed by Joseph Paxton), on the First of May. It is the first world's fair, and is attended by more than 6 million people. London is the world's largest city, with a population of nearly 2.4 million people.

Nathaniel Hawthorne's The House of the Seven Gables and The Snow Image and Other Twice-Told Tales both appear.

Moby Dick, by Herman Melville, is published.

Daguerreotype by John Adams Whipple: Daguerreoype of the moon. Whipple was an American inventor and early photographer. He was the first in the United States to manufacture the chemicals used for daguerreotypes; he pioneered astronomical and night photography; he was a prize-winner for his extraordinary early photographs of the moon; and he was the first to produce images of stars other than the sun — the star Vega and the Mizar-Alcor stellar sextuple system, which was thought to be a double star until 2009.

The US flag is modified to have thirty-one stars, reflecting the addition of one new state: California.

Mathematician Joseph Liouville demonstrates the existence of transcendental numbers (transcendentals are numbers that are not the solution to any algebraic equation).

Léon Foucault demonstrates that the Earth rotates using a pendulum, suspended from the ceiling of a church.

Physicist William Thomson proposes a concept of "absolute zero", at which the energy of molecules is zero. He draws on Charles' Law to show that such a condition would hold at -273 degrees Celsius.

Arithmometer: first commercially successful mechanical calculator launched

The fast-acting Collodion process invented by Frederick Scott Archer. Images require only two or three seconds of light exposure. Collodion process, mostly synonymous with the "collodion wet plate process", requires the photographic material to be coated, sensitized, exposed and developed within the span of about fifteen minutes, necessitating a portable darkroom for use in the field. Collodion is normally used in its wet form, but can also be used in humid ("preserved") or dry form, at the cost of greatly increased exposure time. The latter made the dry form unsuitable for the usual portraiture work of most professional photographers of the 19th century. The use of the dry form was therefore mostly confined to landscape photography and other special applications where minutes-long exposure times were tolerable.

Isaac Singer patents the continuous-stitch sewing machine.

The Erie Railroad, now controlled by Daniel Drew, becomes the first rail line connecting the Great Lakes with New York City, and begins to compete with the Erie Canal as a transportation route.

Harriet Beecher Stowe publishes her anti-slavery novel, Uncle Tom's Cabin.

Peter Mark Roget publishes his Thesaurus of English Words and Phrases. Roget, a 73 year-old physician and English scholar, will publish 28 editions of the Thesaurus during his lifetime (he dies at age 90).

Daguerreotype by John Adams Whipple: Henry Winthrop Sargent and His Family. Whipple kept several distinctive pieces of furniture in his studio that he used to solidify his compositions by disposing them within an image in characteristic ways without having the sitter use them. In fact, it is this unique posing style that identifies Whipple as the artist of the portrait of Henry Winthrop Sargent and his family, taken in Boston in the early 1850s. Here, Whipple's composition is complex and masterful. The empty armchair at the lower left faces the viewer and draws the eye in. The covered table at the far right connects an occupied chair to the edge of the plate and suggests a vanishing point while giving diagonal movement to what is basically a horizontal composition. The corner of a plain backdrop, barely perceptible at the right, aids the illusion of movement and space. The empty armchair acts as a backrest for young Francis Sargent, who is actually supported by a posing stand, the base of which can be seen between his feet and his mother's skirts. Caroline Olmsted Sargent appears to be reading a letter to her assembled family. Her oldest son, Winthrop Henry Sargent, sits facing her, and their profiles echo across the space as he leans toward her. Henry Winthrop Sargent, at the apex of the composition, leans dynamically into the gathering, supporting his weight on the back of a carved side chair. The division of the family into two pairs of linked figures creates powerful parallel diagonals; but despite this calculated arrangement, all of the sitters appear to be at ease and engaged with one another.

The French Republic falls; Louis Napoleon (Napoleon III) is crowned Emperor.

The U.S. state of Massachusetts adopts a compulsory school-attendance law, the first effective example of such a law in the nation.

Albrecht von Kölliker publishes the first textbook of histology, Handbuch der Gewebelehre.

Hermann Ludwig von Helmholtz becomes the first to discover how fast a message travels along a nerve, measuring the speed of transmission in a frog nerve cell.

James Prescott Joule and William Thompson, later Lord Kelvin, establish that an expanding gas becomes cooler. This is now known as the Joule-Thompson effect.

In South Bend, Indiana, Clement and Henry Studebaker found Studebaker Brothers. Joined by a third brother, John, in 1858, the company will become the world's largest maker of wagons and carriages.

In Sweden, safety matches are patented by J. E. Lundstrom.

The brown paper bag is invented.

The elevator is invented, facilitating the future development of skyscrapers.

The U.S. state of Pennsylvania adopts a non-standard railroad gauge in order to prevent New York's Erie Railroad from establishing a route, through Pennsylvania, to Ohio.

Daguerreotype by John Adams Whipple: Cornelius Conway Felton with His Hat and Coat. Felton was Eliot Professor of Greek Literature at Harvard University, reaching for his felt hat and duster. The first son of a poverty-stricken furniture maker, Felton became one of the most renowned classical scholars in the country and, in 1860, Harvard's president. This witty photograph lampoons the rigid formality of the portrait process through narrative gesture (the implied reach across two separate images) and nuance (the delicate crush of the soft hat's crown). As opposed to the inflexible silk top hat worn by dandies and professors alike, the broad-brimmed felt hat was worn by outdoorsmen and was practical, casual, and fundamentally democratic.

Commodore Matthew Perry sails into Japan's Edo Bay with his black ships (four modern, steam-powered warships), urging Japan to open trade policies with the United States.

Franklin Pierce becomes fourteenth president of the United States.

Rudolph Albert von Kölliker discovers the cellular origin of spermatozoa, which were believed by some to originate from a fermentation process.

In Britain, vaccination against small pox is made compulsory.

Léon Foucault demonstrates that the velocity of light is lesson water than in air, tending to confirm the wave theory of light.

William John Macquorn Rankine introduces the concept of potential energy, or energy of position.

Potato chips are invented.

Henry David Thoreau's Walden, or Life in the Woods is published.

Painting by Gustave Courbet: The Meeting (French: La rencontre) is traditionally interpreted as Courbet greeted by his patron Alfred Bruyas, his servant Calas, and his dog while traveling to Montpellier. The composition is based on the Wandering Jew. The Meeting was exhibited in Paris at the 1855 Exhibition Universelle, where critics ridiculed it as "Bonjour, Monsieur Courbet". Bruyas did not exhibit The Meeting until he donated it to the Musée Fabre in Montpellier in 1868.

Kansas-Nebraska Act: In an attempt to spur population growth in the western territories in advance of a transcontinental railroad, Stephen Douglas introduces a bill to establish the territories of Kansas and Nebraska. In order to gain Southern support, the bill stipulates that slavery in the territories will be decided by popular sovereignty. Thus the Kansas-Nebraska Act repeals the Missouri Compromise ban on slavery north of 36 30' in the lands of the Louisiana Purchase.

Ostend Manifesto: The U.S. ministers to Britain, France, and Spain meet in Ostend, Belgium. They draft a policy recommendation to President Pierce, urging him to attempt again to purchase Cuba from Spain and, if Spain refuses, to take the island by force. When the secret proposal, called the Ostend Manifesto, is leaked to the press, it creates an uproar since Cuba would likely become another slave state.

On May 24, Virginia fugitive slave Anthony Burns is captured in Boston and returned to slavery under the provisions of the Fugitive Slave Act. Fifty thousand Boston residents watch his transport through the streets of the city in shackles. A Boston church raises $1500 to purchase his freedom and Burns returns to the city in 1855, a free man.

On May 30, the Kansas-Nebraska act is passed by Congress. The act repeals the Missouri Compromise and permits the admission of Kansas and Nebraska territories to the Union after their white male voters decide the fate of slavery in those territories.

Slavery is abolished in Peru and Venezuela.

The Republican Party is formed in the summer in opposition to the extension of slavery into the western territories.

Mathematician George Boole, whose "Calculus of Logic," appeared in 1848, publishes An Investigation of the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities, which articulates a system of "symbolic logic".

Andr -Adolphe-Eug ne Disd ri credited with introduction of the carte de visite (English: visiting card or calling card) format for portraiture. Disd ri uses a camera with multiple lenses that can photograph eight different poses on one large negative. After printing on albumen paper, the images are cut apart and glued to calling-card-size mounts. Photographs had previously served as calling cards, but Disd ri's invention of the paper carte de visite (i.e. "visiting card") enabled the mass production of photographs. On 27 November 1854 he patented the system of printing ten photographs on a single sheet (although there is no evidence that a system printing more than eight actually materialized). Disd ri's's cartes de visite were 6 9 cm, about the size of conventional (nonphotographic) visiting cards of the time, and were made by a camera with four lenses and a sliding plate holder; a design inspired by the stereoscopic cameras. The novelty quickly spread throughout the world. According to a German visitor, Disd ri's studio became "really the Temple of Photography - a place unique in its luxury and elegance. Daily he sells three to four thousand francs worth of portraits". The fact that these photos could be reproduced inexpensively and in great quantity brought about the decline of the daguerreotype and ushered in a carte de visite craze as they became enormously popular throughout Europe and the United States. Disd ri also invented the twin-lens reflex camera.

In Watertown, Wisconsin, the first kindergarten in the U.S. is opened by Mrs. Carl Schurz (Margarethe Meyer Schurz).

Henry Wadsworth Longfellow's "Song of Hiawatha" appears.

Poet Walt Whitman publishes a volume of twelve poems, Leaves of Grass, at his own expense, and meets with no commercial success.

The Massachusetts Legislature outlaws racially segregated schools.

Recherches sur la putréfaction, by Louis Pasteur, is published. The book describes how fermentation is caused by microorganisms.

A mercury pump is developed by inventor Heinrich Geissler, to produce vacuum tubes. The first cathode rays will be observed in these tubes, after they are modified and improved by Sir William Crookes.

Engineer Frederick Taylor carries out "time-motion" studies of workers with the idea of making their labor more efficient. He will pioneer the "scientific management" of the workplace.

Painting by Jean Auguste Dominique Ingres: The Source (French: La Source), was begun in Florence around 1820 and not completed until 1856, in Paris. When Ingres completed The Source, he was seventy-six years old, already famous, and president of the cole des Beaux-Arts. The pose of the nude may be compared with that of another by Ingres, the Venus Anadyomene (1848), and is a reimagination of the Aphrodite of Cnidus or Venus Pudica. Two of Ingres' students, painters Paul Balze and Alexandre Desgoffe, helped to create the background and water jar. The first exhibition of The Source was in 1856, the year it was completed. The painting was received enthusiastically. Duch tel acquired the painting in 1857 for a sum of 25,000 francs. The state assumed title to the painting in 1878 and it passed to the Mus e du Louvre. In 1986 it was transferred to the Mus e d'Orsay. The painting has been frequently exhibited and widely published. Haldane Macfall in A History of Painting: The French Genius describes The Source as Ingres' "superb nude by which he is chiefly known". Kenneth Clark in his book Feminine Beauty observed how The Source has been described as "the most beautiful figure in French painting."

The Caning of Charles Sumner: Senator Charles Sumner delivers a stinging speech in the U.S. Senate, "The Crime against Kansas," in which he attacks slavery, the South, and singles out his Senate colleague, Andrew Butler of South Carolina, for criticism. In retaliation, Butler's nephew, Congressman Preston Brooks of South Carolina, attacks Sumner with a cane while the Massachusetts senator is seated at his desk on the floor of the Senate. The injuries he sustains cause Sumner to be absent from the Senate for four years. The episode revealed the polarization in America, as Sumner became a martyr in the North and Brooks a hero in the South. Northerners were outraged. Southerners sent Brooks hundreds of new canes in endorsement of his assault. One was inscribed "Hit him again." Brooks claimed that he had not intended to kill Sumner, or else he would have used a different weapon. In a speech to the House defending his actions, Brooks stated that he "meant no disrespect to the Senate of the United States" or the House by his attack on Sumner. He was tried in a District of Columbia court, convicted for assault, and fined $300 ($8,000 in today's dollars), but received no prison sentence.

In South Africa, Boers establish the South African Republic (Transvaal), with Pretoria as its capital. Marthinus Wessels Pretorius, 37, is named the first president.

The Second Opium War (1856-1860) between Britain and China leads to further erosion of Chinese sovereignty.

Heinz Christian Pander describes conodonts — toothy microfossils that will puzzle paleontologists for many years.

A railway bridge spanning the Mississippi opens between Rockville, Illinois, and Davenport, Iowa. Abraham Lincoln, a lawyer, will defend the legality of the bridge before the Supreme Court, in response to a "right of way" suit brought by a steamship company.

During Easter vacation from London's Royal College of Chemistry, 18-year-old William Henry Perkin synthesized mauve, or aniline purple — the first synthetic dyestuff — from chemicals derived from coal tar. Mauve was enthusiastically adopted by the fashion industry in England and synthetic dyes quickly destroyed the market for natural substances derived from plants like indigo and madder. Perkin's creation was an accident — he was trying to synthesize quinine.

The "Bessemer process" for making inexpensive steel, which involves using blasts of cold air to decarbonize melted pig iron, is developed by inventor Henry Bessemer.

The 458-mile Wabash and Erie Canal opens after 24 years, and is the largest canal ever dug in the U.S. By 1860, however, sections will begin to be close, and, unable to compete for railroads, the entire Canal will be closed by 1874.

Madame Bovery, by Gustave Flaubert, is published

Photograph by Gustave Le Gray: Lighthouse and Jetty, le Havre, an albumen print.

Photograph by Gustave Le Gray: The Great Wave. The dramatic effects of sunlight, clouds, and water in Le Gray's seascapes stunned his contemporaries and immediately brought him international recognition. At a time when photographic emulsions were not equally sensitive to all colors of the spectrum, most photographers found it impossible to achieve proper exposure of both landscape and sky in a single picture. Le Gray solved this problem by printing two negatives on a single sheet of paper: one exposed for the sea, the other for the sky, and sometimes made on separate occasions or in different locations. Le Gray's marine pictures caused a sensation not only because their simultaneous depiction of sea and heavens represented a technical tour de force, but also because the resulting poetic effect was without precedent in photography.

Painting by Jean-François Millet: The Gleaners (Des glaneuses) depicts three peasant women gleaning a field of stray grains of wheat after the harvest. The painting is famous for featuring in a sympathetic way what were then the lowest ranks of rural society; this was received poorly by the French upper classes. The painting immediately drew negative criticism from the middle and upper classes, who viewed the topic with suspicion: one art critic, speaking for other Parisians, perceived in it an alarming intimation of "the scaffolds of 1793." Its size (33×44 inches) was also considered offensive, as it was too large for an image depicting mere labor.

Farmer Hinton Rowan Helper publishes The Impending Crisis of the South, and How to Meet It, in which he argues that slavery in economically unwise, and particularly devastating to small farmers who do not own slaves. He writes that slavery is "the root of all the shame, poverty, ignorance, tyranny and imbecility" in the South. He also argues that slavery foolishly ties up economic resources in human beings when it might be spent on labor-saving improvements.

The African slave trade is prohibited in the Ottoman Empire

The Dred Scott Decision makes the Missouri Compromise unconstitutional and increases tension between North and South over slavery in the United States. Writing for the majority, Chief Justice Roger B. Taney asserted that blacks were "beings of an inferior order, and altogether unfit to associate with the white race, either in social or political relations, and so far inferior that they had no rights which the white man was bound to respect." This embarrassing decision represents a low point in the history of the United States Supreme Court.

James Buchanan becomes fifteenth president of the United States.

Giuseppe Garibaldi, who returned to Italy in 1854 after several years working at Staten Island, New York, founds the Italian National Association. The organization is designed to promote the unification of Italy.

Über die Art der Bewegung, welche wir Wäe nennen (On the type of motion turned heat) by Rudolf Clausius is establishes his kinetic theory of heat of the mathematical basis. It also explains how evaporation occurs.

In Burrville, Connecticut, commercial production of Gail Borden's patented "condensed milk" begins. The product is made from skim milk, without any fat and without a number of nutrients found in cow's milk.

In California, Tokay, Zinfandel, and Shiraz grapes (all from Hungary) are first planted, and Italian honeybees are introduced. This is the beginning of the U.S. wine and honey industries. In North America, honey bees are an artificially introduced and invasive species.

Robert Wilhelm von Bunsen (along with Henry Roscoe) publish a design for a laboratory burner in Poggendorff's Annalen der Physik und Chemie, 100:84-85.

Central Park, in New York City, is opened to the public.

The US flag is modified to have thirty-two stars, reflecting the addition of one new state: Minnesota.

Abraham Lincoln, running for the United States Senate, declares "A house divided against itself cannot stand." He loses the race to Stephen Douglas, but his performance in there now-legendary debates leads to his nomination as the Republican candidate for president in 1860.

In Ireland, the group Sein Féin is founded.

The first relatively complete dinosaur skeleton, of Hadrosaurus foulkii, is found in New Jersey.

Physician Henry Gray publishes Anatomy of the Human Body, Descriptive and Surgical. Gray's Anatomy will be a standard textbook of anatomy for more than a century.

The concept of "bonds" is introduced by chemist Archibald Scott Couper, who believes that carbon atoms are the fundamental building blocks of organic compounds.

Julius Plücker shows that cathode rays bend under the influence of a magnet, suggesting they are connected in some way with charge. This is an early step along the path that will lead in 1897 to the discovery that cathode rays are composed of electrons.

J. Schweppe & Co. Ltd. patents a quinine tonic water that they will begin selling in 1880.

John Landis Mason patents a reusable glass jar.

In Manchester, England, the first "playgrounds" for children are opened, complete with swings and horizontal bars for climbing and hanging.

Jules Léotard performs the first flying trapeze circus act, with the Cirque Napoléon in Paris. Léotard's standard performance costume — a skin-tight one-piece garment that covers the torso but leaves the legs free — later becomes known generically as a "leotard." Léotard also becomes the subject of a popular song: "The Daring Young Man on the Flying Trapeze."

Photograph by Gustave Le Gray: The Pont du Carrousel Seen from the Pont Royal, an albumen print.

The US flag is modified to have thirty-three stars, reflecting the addition of one new state: Oregon.

Harriet Wilson of Milford, New Hampshire, publishes Our Nig; or Sketches from the Life of a Free Black, the first novel by an African-American woman.

On October 16, John Brown leads 20 men, including five African-Americans, in an unsuccessful attempt to seize the Federal Armory at Harper's ferry, Virginia, with the goal of inspiring a slave insurrection. He was captured by US troops under the command of Colonel Robert E. Lee, tried, and hanged on December 2.

An exceptionally well-preserved skeleton is discovered in Bavaria. Two years later, this bird-like, bipedal dinosaur will be named Compsognathus, meaning "dainty jaw."

Catholic priest Jean-Jacques Pouech describes fossil eggshell fragments. They will eventually prove to be the first described dinosaur eggs.

Matrix algebra begins, as mathematician Arthur Cayley discusses the matrix in the context of a theory of invariant transformations.

Gustav Kirchoff recognizes that sodium is found on the sun and discovers his black-body radiation law.

Physicist Gustav Robert Kirchhoff and chemist R. W. Bunsen explain that when light passes through a gas, or heated material, only certain wavelengths of the light are absorbed. Therefore, an analysis of the spectrum of the light can reveal the chemical makeup of the gas or material.

In Titusville, Pennsylvania, commercial production of petroleum begins, with drilling of the first well by Edwin Laurentine Drake. The well will produce approximately 400 gallons/day.

The first internal combustion engine is developed by Jean-Joseph-Etienne Lenoir. The engine uses coal gas.

"A Veteran with his Wife", taken by an anonymous photographer, shows a British veteran of the Napoleonic era Peninsular Wars. It is a hand-tinted ambrotype using the set collodion positive process, made circa 1860.

Daguerreotype by Unknown Photographer: Portrait of a Woman with a Mandolin. Collection of the J. Paul Getty Museum.

On December 20, South Carolina secedes from the union, setting in motion the forces leading to the US Civil war.

Southern Secession South Carolina secedes in December. More states follow the next year.

The Pony Express begins cross-country mail delivery.

John Phillips diagrams the progressive but fluctuating diversity of life on Earth based on the fossil record. His work evidences massive extinctions at the end of the Paleozoic and Mesozoic, and increased diversity in each subsequent age.

Louis Pasteur becomes significantly involved in biological research with the publication of "Mémoir sur la fermentation alcoolique" in which he showed that alcoholic fermentation seemed to be carried out by yeast, which were themselves living organisms.

Herman Hollerith was born 29th February 1860

Emil Erlenmeyer invents the flask.

Abraham Lincoln becomes sixteenth president of the United States.

Fort Sumter shelled, American Civil War begins.

The First Battle of Bull Run, also known as the First Battle of Manassas (the name used by Confederate forces and still often used in the Southern United States), is fought on July 21, 1861, near Manassas, Virginia. It is the first major land battle of the American Civil War. Neither Confederate nor Union troops were ready for battle. Union troops advanced on Confederate troops, almost breaking through, but at the last moment, Confederate reinforcements arrived on the battlefield and carried the day. Union troops were routed. Union civilian spectators, who had come to watch the expected Confederate defeat as entertainment, were forced to run for their lives.

Painting by Edgar Degas: The Bellelli Family, also known as Family Portrait, is housed in the Musée d'Orsay. A masterwork of Degas' youth, the painting is a portrait of his aunt, her husband, and their two young daughters. While finishing his artistic training in Italy, Degas drew and painted his aunt Laura, her husband the baron Gennaro Bellelli, and their daughters Giulia and Giovanna. Although it is not known for certain when or where Degas executed the painting, it is believed that he utilized studies done in Italy to complete the work after his return to Paris. Laura, his father's sister, is depicted in a dress which symbolizes mourning for her father, who had recently died and appears in the framed portrait behind her. Laura Bellelli's countenance is dignified and austere, her gesture connected with those of her daughters. Her husband, by contrast, appears to be separated from his family. His association with business and the outside world is implied by his position at his desk. Giulia holds a livelier pose than that of her sister Giovanna, whose restraint appears to underscore the familial tensions.

The US flag is modified to have thirty-four stars, reflecting the addition of one new state: Kansas.

United States Civil War Four years of brutal conflict claim 623,000 lives.

First recognized fossil Archaeopteryx lithographica skeleton is found in the stone quarries of Solnhofen.

In "Mémoires sur les corpuscles organisés qui existent dans l'atmosphère," Pasteur applies heat to bent-neck flasks to show unequivocally that the "organized bodies" (microbes) which drive fermentation originate from "organized bodies" that exist in the atmosphere. In this elegant series of experiments, Pasteur laid to rest the long-held belief in spontaneous generation."

In his presidential address to the Geological Society of London, Leonard Horner proposes removing the world's "creation" date of 4004 BC from the English Bible, citing geological evidence of a much older planet.

Oliver Wendell Holmes invents stereoscope viewer

James Clerk Maxwell presents a projected additive color image of a multicolored ribbon, the first demonstration of color photography by the three-color method he suggested in 1855. It uses three separate black-and-white photographs taken and projected through red, green and blue color filters. The projected image is temporary but the set of three "color separations" is the first durable color photograph.

Congress passes the First Confiscation Act, which prevents Confederate slave owners from re-enslaving runaways.

Photograph by Alexander Gardner: President Abraham Lincoln, Headquarters, Army of the Potomac, near Antietam, an albumen silver print. Allan Pinkerton stands to Lincoln's right, General John A. McClernand to Lincoln's left.

Painting by Gustave Courbet: The Source shows a nude in an unflinchingly naturalistic style and is devoid of the trappings of academic allegory to which the painting's title alludes. Courbet is thought to have intended it as a response to Ingres's own La Source (1856, Musée d Orsay, Paris), which was exhibited at the Galerie Martinet, Paris, in 1861. The picture by Ingres depicts an idealized nude holding a jar from which water pours, an allusion to a spring or river source, and symbolizing poetic inspiration.

On April 16, Congress abolishes slavery in the District of Columbia.

Otto von Bismarck is appointed Prime Minister of Prussia.

The Battle of Fort Donelson (11-16 Feb) is an early Union victory in the American Civil War, which opened the Cumberland River as an avenue for the invasion of the South. The success elevated Brig. Gen. Ulysses S. Grant from an obscure and largely unproven leader to the rank of major general.

The Battle of Shiloh (6-7 Apr). Although the Confederates swept the field on the first day, Union troops under U. S. Grant retook the field on the second day. Combined Union and Confederate casualties (23,746 killed, wounded, or missing) represented more than the total American battle-related casualties of the American Revolutionary War, the War of 1812, and the Mexican-American War combined.

Lord Kelvin asserts that the Earth and sun are cooling from their initial formation, between 20 and 400 million years ago. He will later adopt the smaller number.

Photograph by John Adams Whipple: Asa Gray, an albumen print. Gray was considered the most important American botanist of the 19th century. His Darwiniana was considered an important explanation of how religion and science were not necessarily mutually exclusive. As a professor of botany at Harvard University for several decades, Gray regularly visited, and corresponded with, many of the leading natural scientists of the era, including Charles Darwin, who held great regard for him. Gray made several trips to Europe to collaborate with leading European scientists of the era, as well as trips to the southern and western United States. He also built an extensive network of specimen collectors.

Painting by Édouard Manet: Olympia shocked the art world with its style (strong brush strokes, considered childish and unskilled) and its subject matter, a nude white woman ("Olympia"), presumably a courtesan, lying on a bed being brought flowers by a black servant. When hung in the Salon of Paris in 1865, it was met with jeers, laughter, criticism, and disdain, and was attacked by the public, the critics, the newspapers. Guards were stationed to protect it, until it was moved to a spot high above a doorway, out of reach.

Painting by Édouard Manet: Le Déjeuner sur l'herbe (English: The Luncheon on the Grass) is a large oil on canvas painting depicting a female nude and a scantily dressed female bather on a picnic with two fully dressed men in a rural setting. Rejected by the Salon jury of 1863, Manet seized the opportunity to exhibit this and two other paintings in the 1863 Salon des Refusés where the painting sparked public notoriety and controversy. The piece is now in the Musée d'Orsay in Paris. A smaller, earlier version can be seen at the Courtauld Gallery, London. The painting features a nude woman casually lunching with two fully dressed men. Her body is starkly lit and she stares directly at the viewer. The two men, dressed as young dandies, seem to be engaged in conversation, ignoring the woman. In front of them, the woman's clothes, a basket of fruit, and a round loaf of bread are displayed, as in a still life. In the background, a lightly clad woman bathes in a stream. Too large in comparison with the figures in the foreground, she seems to float above them. The roughly painted background lacks depth — giving the viewer the impression that the scene is not taking place outdoors, but in a studio. This impression is reinforced by the use of broad "studio" light, which casts almost no shadows. The man on the right wears a flat hat with a tassel, of a kind normally worn indoors. Despite the mundane subject, Manet deliberately chose a large canvas size, measuring 81.9 by 104.1 inches, normally reserved for historical, religious, and mythological subjects. The style of the painting breaks with the academic traditions of the time. He did not try to hide the brush strokes; the painting even looks unfinished in some parts of the scene.

Painting by Jean Auguste Dominique Ingres: The Turkish Bath (Le Bain Turc) depicts a group of nude women in the bath of a harem, and is painted in a highly erotic style that evokes both the near east and earlier western styles associated with mythological subject matter. Painted on canvas laid down on wood, it measures 108 x 108 cm. The work is signed and dated 1862, when Ingres was around 82 years old, and was completed in 1863. In that year Ingres altered the painting's original rectangular format, and cut the painting to its present tondo form. Photographs of the painting in its original format survive. It seems based on an April 1717 written description of a Turkish harem by Lady Mary Montagu, where she mentions having viewed some two hundred nude women. The painting develops and elaborates a number of motifs Ingres had explored in earlier paintings, in particular his 1808 The Valpinçon Bather and Grande Odalisque of 1814. Its erotic content did not provoke a scandal, since for much its existence it has remained in private collections. It is now in the Louvre, Paris.

Painting by Alexandre Cabanel: The Birth of Venus, now in the Musée d'Orsay in Paris. A second and smaller version (85 × 135.9 cm) from ca. 1864 is in Dahesh Museum of Art. A third (106 × 182.6 cm)[2] version dates from 1875; it is in the Metropolitan Museum of Art in New York City. Shown to great success at the Paris Salon of 1863, The Birth of Venus was immediately purchased by Napoleon III for his own personal collection. That same year Cabanel was made a professor of the Ecole des Beaux-Arts. Cabanel's combination of sensual and classical imagery appealed to the higher levels of society. Art historian and curator Robert Rosenblum wrote of Cabanel's The Birth of Venus that "This Venus hovers somewhere between an ancient deity and a modern dream"; he described "the ambiguity of her eyes, that seem to be closed but that a close look reveals that she is awake ... A nude who could be asleep or awake is specially formidable for a male viewer."

The US flag is modified to have thirty-five stars, reflecting the addition of one new state: West Virginia. This new state was created when Union sympathizers in the western portion of Virginia seceded from Virginia (then in secession from the US) and rejoined the Union.

Abraham Lincoln's Emancipation Proclamation takes effect on January 1, legally freeing slaves in areas of the South still in rebellion against the United States.

The Battle of Gettysburg (1-3 Jul) was the battle with the largest number of casualties in the American Civil War. Union Maj. Gen. George Gordon Meade's Army of the Potomac defeated attacks by Confederate Gen. Robert E. Lee's Army of Northern Virginia, ending Lee's invasion of the North.

The Siege of Vicksburg was the final major military action in the Vicksburg Campaign of the American Civil War. Union Maj. Gen. Ulysses S. Grant crossed the Mississippi River and drove the Confederate army of Lt. Gen. John C. Pemberton into the fortress city of Vicksburg, Mississippi, and placed the city under siege. After more than forty days, with no re-enforcement and supplies nearly gone, the garrison surrendered on July 4. This surrender, combined with Lee's defeat at Gettysburg the previous day, represents the turning point of the war. From then on, military victory for the Confederacy was impossible.

Anti-evolutionist James Hunt, founder of the Anthropological Society of London, gives a presidential address to the society stating that human races were created separately. He further argues that the African species is closer in ability to apes than to Europeans.

T. H. Huxley publishes Man's Place in Nature discussing human and primate paleontology, and showing similarities between humans and other animals.

Father-and-son glassworkers Leopold and Rudolf Blaschka begin making glass models of marine invertebrates. Marine biologists will refer to their exquisitely detailed, accurate models 150 years later while trying to see how many of the depicted species can still be found in the wild.

Abraham Lincoln forms the National Academy of Sciences.

After the Confederate defeat at Chattanooga, President Lincoln promoted Grant to a special regular army rank, Lieutenant General, authorized by Congress on March 2, 1864. This rank had previously been awarded two other times, a full rank to George Washington and a Brevet rank to Winfield Scott. Lincoln then places Grant in charges of all Union forces.

Sherman captures Atlanta, marches to Savannah. Through a series of bloody battles, Grant forces Lee back to Petersburg, Virginia, and then lays siege to the city. Lincoln is reelected, destroying the South's hope for a political settlement to the war.

Ernst Haeckel (Häckel) outlines the essential elements of modern zoological classification.

James Clerk Maxwell's A dynamical theory of the electromagnetic field is the first of his publications to use Michael Faraday's concept of a field as the basis of the mathematical treatment of electricity and magnetism. It introduces Maxwell's equations to describe electromagnetism.

On February 1, Abraham Lincoln signs the 13th Amendment to the United States Constitution outlawing slavery throughout the United States.

The Thirteenth Amendment to the United States Constitution officially abolished slavery and involuntary servitude, except as punishment for a crime. It was passed by the Senate on April 8, 1864, passed by the House on January 21, 1865, and adopted on December 6, 1865.

Lee surrenders, US Civil war ends, Lincoln assassinated.

Andrew Johnson becomes seventeenth president of the United States.

Alice's Adventures in Wonderland (commonly shortened to Alice in Wonderland) first published. The novel was written by English author Charles Lutwidge Dodgson under the pseudonym Lewis Carroll.

Painting by Ford Madox Brown: Work is generally considered to be his most important achievement. It exists in two versions. The painting attempts to portray, both literally and analytically, the totality of the Victorian social system and the transition from a rural to an urban economy. Brown began the painting in 1852 and completed it in 1865, when he set up a special exhibition to show it along with several of his other works. He wrote a detailed catalogue explaining the significance of the picture. The picture depicts a group of so-called "navvies" digging up the road to build an underground tunnel. It is typically assumed that this was part of the extensions of London's sewerage system, which were being undertaken to deal with the threat of typhus and cholera. The workers are in the centre of the painting. On either side of them are individuals who are either unemployed or represent the leisured classes. Behind the workers are two wealthy figures on horseback, whose progress along the road has been halted by the excavations. The painting also portrays an election campaign, evidenced by posters and people carrying sandwich boards with the name of the candidate "Bobus". A poster also draws attention to the potential presence of a burglar. The setting is an accurate depiction of The Mount on Heath Street in Hampstead, London, where a side road rises up above the main road and runs alongside it. Brown made a detailed study of the location in 1852.

The US flag is modified to have thirty-six stars, reflecting the addition of one new state: Nevada.

The Ku Klux Klan is formed on December 24 in Polanski, Tennessee, by six Confederate veterans. Nathan Bedford Forrest, a former Confederate cavalry general and slave trader, serves as the Klan's first grand wizard or leader-in-chief.

John Lubbock publishes Prehistoric Times dividing what has previously been understood to be the Stone Age into two parts: the older Paleolithic and the newer Neolithic. In the same book, he also argues that modern Tasmanians and Fuegians are throwbacks to archaic humans.

Sir John William Dawson of McGill University identifies "shells" of huge foraminiferal protozoans. Known as Eozoön or "dawn animal," this find is used as an argument against evolution because it shows a relatively "modern" animal early in the fossil record. It will prove, however, to be a geologically young pseudofossil formed by heat and pressure on limestone.

Paolo Mantegazza publishes Degli Innesti Animali e della Produzione Artificiale delle Cellule (On Animal Grafts and Artificial Cell Production) describing the results of a series of interspecies animal grafts, such as the transplant of a cockspur onto a cow ear. Grafts described include transplants between dogs, frogs and rodents. Mantegazza reports that some grafts decomposed while others became "pathological tumours."

Rudolf Clausius invents the term ENTROPY to describe the degradation of energy in the closed system.

Blue Danube Waltz Presented Johann Strauss the younger first presents his Blue Danube Waltz, which later became one of the most popular and familiar works of European music.

On June 13, Congress approves the Fourteenth Amendment to the Constitution, guaranteeing due process and equal protection under the law to all citizens. The amendment also grants citizenship to African-Americans.

Ernst Heinrich Haeckel (Häckel) first used the term ECOLOGY to describe the study of living organisms and their interactions with other organisms and with their environment.

The US flag is modified to have thirty-seven stars, reflecting the addition of one new state: Nebraska.

The Alaska Purchase resulted in the transfer of Alaska to the United States from the Russian Empire for a total price of $ 7,000,000. The purchase, made at the initiative of United States Secretary of State William H. Seward, gained 586,412 square miles of new United States territory.

Orléans Railway Company employee Peccadeau de l'Isle presents a paper to the French Academy of Sciences on his recent discoveries at Montastruc, including a mammoth carved from a reindeer antler, and two reindeer (found in separate pieces) carved from a mammoth tusk. The finds will eventually be dated at about 13,000 years old.

Louisa May Alcott publishes Little Women.

The Meiji Restoration in Japan (led by samurai from the western clans of Satsuma, Choshu, Tosa, and Hizen) overthrows the feudal shogunate system and initiates Japan's participation in the modern world.

The Impeachment of Andrew Johnson, 17th President of the United States, was one of the most dramatic events in the political life of the United States during Reconstruction, and the first impeachment in history of a sitting United States president.

Three human skulls and other skeletal remains, roughly 30,000 years old, are discovered at a rock shelter called Cro-Magnon (old French for "big hole").

Louis Ducos du Hauron patents his numerous ideas for color photography based on the three-color principle, including procedures for making subtractive color prints on paper. They are published the following year. Their implementation is not technologically practical at that time, but they anticipate most of the color processes that are later introduced.

Wallace Clement Ware Sabine becomes the first acoustical engineer and uses acoustic principles to design Boston's Symphony Hall.

Painting by : At the Races in the Countryside. This painting was one of the first works that Degas sold (in 1872) to Paul Durand-Ruel, the dealer who became the early champion of the Impressionists. It is not only a landscape but also a scene from everyday life and — most of all — a family portrait. The driver of the carriage is Degas's friend Paul Valpin on, who is shown with his wife, a wet nurse, and in the nurse's lap, the couple's son, Henri.

On February 26, Congress sends the Fifteenth Amendment to the Constitution to the states for approval. The amendment guarantees African-American males the right to vote.

Transcontinental Rail Service Begun in the United States On May 10th, at Promontory Point, Utah, a golden rail spike was struck, completing the first transcontinental railroad line.

Ulysses S. Grant becomes eighteenth president of the United States.

Japan colonizes Hokkaido as part of its new nation state.

The Suez Canal opened to traffic on 17 November. The canal linked the Mediterranean and the Red Sea. It was 103 miles long and it brought Oriental ports 5,000 miles closer to Europe. Work had begun on the canal in 1859, financed primarily by French investors. The canal increased the strategic importance of Egypt to European powers.

Huxley, Norman Lockyer and others found Nature Magazine, which becomes one of the world's two most important scientific journals. (The other journal is Science.)

Standard Oil Formed On January 10th, 1870, John D Rockefeller and four partners incorporate the Standard Oil Company. The company gains control of nearly 95% of the oil refining industry in the United States.

The First Vatican Council of the Roman Catholic Church proclaims the dogma of the infallibility of the Pope.

The Franco-Prussian war (1870-71) leads to the formation of the German Empire.

O. C. Marsh discovers the first North American pterosaur, from chalk deposits in Kansas. He calculates the wingspan at 20 feet. The following year, he will collect more fossils that confirm this calculation.

Quarry workers in the Valley Forge area discover the Port Kennedy Bone Cave, under roughly the same site where the Continental Army wintered over a century earlier. The site proves rich in Pleistocene plant and animal fossils, but will be accidentally flooded decades later. The site will be lost to science until its rediscovery after the turn of the 21st century.

The rivalry between fossil collectors O. C. Marsh and E. D. Cope turns ugly when Marsh publicly points out Cope's error in reconstructing a fossil marine reptile (putting its head on the tip of its tail). Their rivalry is the public's gain as they try to outdo each other in identifying new dinosaur species — over 130.

On October 8th, a fire broke out in the west side of Chicago. The Great Chicago Fire lasted two days, killing 300 people, and destroying most of Chicago. Property damages were estimated at 200 million dollars.

On October 8th, a fire broke out in the village of Peshtigo, Wisconsin. The Peshtigo Fire caused more deaths than any other fire in the history of the United States. By the time it was over, 1,875 square miles (1.2 million acres) of forest had been consumed, an area approximately twice the size of the state of Rhode Island. Some sources list as much as 1.5 million acres burned. Twelve communities were destroyed. An accurate death toll has never been determined since local population records were destroyed in the fire. Between 1,200 and 2,500 people are thought to have lost their lives.

The occurrence of this fire, and several other smaller fires, on the same day as the Great Chicago fire has lead some to speculate that all of the fires may have had a common cause: multiple impacts from fragments of a disintegrating comet.

Painting by Ilia Efimovich Repin: Barge Haulers on the Volga or Burlaki (Russian: Burlaki na Volge) is an 1870 73 oil-on-canvas painting depicting laboring men dragging a barge on the Volga River. The men seem to almost collapse forward in exhaustion under the burden of hauling a large boat upstream in heavy, hot weather. The work is both a celebration of the men's dignity and fortitude, and a highly emotional condemnation of those who sanctioned such inhumane labor. Although they are presented as stoical and accepting, the men are largely defeated; only one stands out: in the center of both the row and canvas, a brightly colored youth fights against his leather binds and takes on a heroic pose.

Painting by James McNeill Whistler: Arrangement in Grey and Black No.1, best known under its colloquial name Whistler's Mother, depicts Whistler's mother, Anna McNeill Whistler. The painting is 56.81 by 63.94 inches, displayed in a frame of Whistler's own design. It is exhibited in and held by the Musée d'Orsay in Paris, having been bought by the French state in 1891. It is one of the most famous works by an American artist outside the United States. It has been variously described as an American icon and a Victorian Mona Lisa.

Henry Morton Stanley finds David Livingstone in Africa, greeting the Scotsman with the famous words, "Dr. Livingstone, I presume."

The Second Reich proclaimed With the German victory in France complete, the German Reichstag(parliament) proclaimed the creation of the Second Reich. The Reichstag approved with minor modification the constitution of the Northern German Federation. William I became King of Germany with Otto Bismarck the first chancellor.

George Johnstone Stoney notes that the wavelengths of three lines in the hydrogen spectrum are found to have simple ratios, and anticipation of Balmer's formula, an important step towards understanding the structure of the atom.

James Clerk Maxwell explains how his statistical theory of heat works by inventing MAXWELL'S DEMON, a mythical creature that can see and handle individual molecules. By opening a gate between two vessels containing a gas only one of fast molecules passing into one, the demon would make heat flow from cold to hot.

Richard Leach Maddox invents the gelatin dry plate silver bromide process. Negatives no longer had to be developed immediately. Long before his discovery of the dry gelatin photographic emulsion, Maddox was prominent in what was called photomicrography - photographing minute organisms under the microscope. The eminent photomicrographer of the day, Lionel S. Beale, included as a frontispiece images made by Maddox in his manual 'How to work with the Microscope'.

Painting by Claude Monet: Impression, Sunrise (French: Impression, soleil levant) was shown at what would later be known as the "Exhibition of the Impressionists" in April 1874. The painting depicts the port of Le Havre, Monet's hometown, and is his most famous painting of the harbor. Monet claimed that he titled the painting Impression, Sunrise due to his hazy painting style in his depiction of the subject: "They asked me for a title for the catalogue, it couldn't really be taken for a view of Le Havre, and I said: 'Put Impression.'" In addition to this explanation for the title of the work, art historian Paul Smith claims that Monet might have named the painting Impression to excuse his painting from accusations of being unfinished or lacking descriptive detail, but Monet received these criticisms regardless of the title

Painting by Claud Monet: Boulevard des Capucines. From the late 1860s, Monet and other like-minded artists, met with rejection from the conservative Académie des Beaux-Arts which held its annual exhibition at the Salon de Paris. During the latter part of 1873, Monet, Renoir, Pissarro, and Sisley organized the Société anonyme des artistes peintres, sculpteurs et graveurs to exhibit their artworks independently. At their first exhibition, held in April 1874, Monet exhibited the work that was to give the group its lasting name, Impression, Sunrise. Among the works Monet included in the first Impressionist exhibition was The Luncheon, 1868, which features Camille Doncieux and Jean Monet. The painting was rejected by the Paris Salon of 1870. Also in this exhibition was a painting titled Boulevard des Capucines, a painting of the boulevard done from the from the studio of Monet's friend, the photographer Felix Nadar.

Painting by Edgar Degas: A Cotton Office in New Orleans depicts the artist's uncle Michel Musson's cotton brokerage business (which several years later went bankrupt in an economic crash, according to Michael McMahon of the Pittsburgh Post-Gazette when the firm was swamped by the postwar growth of the much larger Cotton Exchange). In the painting, Musson is seen examining raw cotton for its quality while Degas' brother René reads The Daily Picayune. Another brother, Achille, rests against a window wall at left while others, including Musson's partners, go about their business. A Cotton Office in New Orleans was the first painting by Degas to be purchased by a museum, and the first by an Impressionist. Degas' sale of the piece marked a turning point in his career as he moved from being a struggling, unrecognized artist to a recognized and financially stable artist, according to Marilyn Brown in her book Degas and the Business of Art: A Cotton Office in New Orleans. Degas traveled from Europe to New Orleans in late 1872 with his brother, René, to visit his mother's brother, Michael Musson. After the American Civil War, René had joined his uncle's cotton business in New Orleans. Degas was to return to Europe in January 1873, but when his return trip was delayed, he was asked by his relatives to paint their portraits, and decided to show them as a group, at work in the family office.

Slavery is abolished in Puerto Rico.

Spain decrees the end of slavery in Cuba, still a Spanish colony.

Francis Galton publishes a paper entitled "Hereditary Improvement" arguing that people "of really good breed" should be encouraged to reproduce while their inferiors should be discouraged from doing so. This, he argues, will improve humanity the way selective breeding improves livestock.

James Clerk Maxwell's Electricity and Magnetism contains the basic laws of electromagnetism and predicts, in great detail, such phenomena as radio waves and pressure caused by light rays.

QWERTY keyboard invented

Hermann Wilhelm Vogel discovers dye sensitization, allowing the blue-sensitive but otherwise color-blind photographic emulsions then in use to be made sensitive to green, yellow and red light. Technical problems delay the first use of dye sensitization in a commercial product until the mid-1880s; fully panchromatic emulsions are not in common use until the mid-20th century.

Painting by Edgar Degas: The Ballet Class (French: La Classe de danse) is in the collection of the Musée d'Orsay, Paris, France. It was commissioned by Jean-Baptiste Faure. Degas temporarily abandoned work on this painting, and delivered a work of a similar name to Faure. The painting depicts dancers at the end of a lesson under ballet master Jules Perrot. Perrot and Degas were friends, and Perrot allowed Degas access to dance classes.

Painting by Pierre-Auguste Renoir: La Loge (The Theatre Box) depicts an elegant-looking couple sitting in an elevated theater box. This tribute to Parisian modern life was also the artist's principal contribution to the very first Impressionist exhibition of the same year, and it was met with much acclaim. It is now part of the collection at Courtauld Institute of Art in London.

The Hamburg Tierpark features an "anthropological-zoological" display of Lapps acting out "daily life" with reindeer. The show draws enthusiastic crowds.

The Mütter Museum buys 139 human skulls from Viennese anatomist Joseph Hyrtl. Hyrtl has compiled the collection to show the remarkable variation within European populations, and to debunk the claims of phrenologists. The collection is unusual for the time, when most skull assemblages are aimed at emphasizing differences between ethnic groups.

Irish physicist George J. Stoney estimates the charge of the then unknown electron to be about 10^-20 coulomb, close to the modern value of 1.6021892 x 10^-19. He also introduces the term ELECTRON.

The Cavendish laboratory at Cambridge is completed. Although widely believed to have been named after the 18th-century physicist Henry Cavendish, it is, in fact, named after the entire Cavendish family, because the 19th century steel-making descendent of Henry, William Cavendish, financed the laboratory. The structure of DNA was worked out at the Cavendish many years later by Watson and Crick.

Thomas J. Watson Sr. is born

The first electric tram operates in New York City.

Painting by Claude Monet: Woman with a Parasol - Madame Monet and Her Son, sometimes known as The Stroll (French: La Promenade) depicts his wife Camille Monet and their son Jean Monet in the period from 1871 to 1877 while they were living in Argenteuil, capturing a moment on a stroll on a windy summer's day. The work is a genre painting of an everyday family scene, not a formal portrait. The work was painted outdoors, en plein air, and quickly, probably in a single period of a few hours. It measures 100 × 81 centimetres (39 × 32 in), his largest work in the 1870s, and is signed "Monet 75" in the lower right corner.

Painting by Thomas Eakins: The Gross Clinic, or, The Clinic of Dr. Gross, is large painting, measuring 8 feet (240 cm) by 6.5 feet (200 cm). Dr. Samuel D. Gross, a seventy-year-old professor dressed in a black frock coat, lectures a group of Jefferson Medical College students. Admired for its uncompromising realism, The Gross Clinic has an important place documenting the history of medicine both because it honors the emergence of surgery as a healing profession (previously, surgery was associated primarily with amputation), and because it shows us what the surgical theater looked like in the nineteenth century. In 1875, anesthesia was used, but sterile procedures were not.

Paleontologist Roberto Lawley collects a badly eroded Pliocene whale bone near Pisa, Italy, and donates it to the paleontology museum of Florence. In the 21st century, close examination will indicate boreholes of Osedax, mouthless, gutless marine worms (nicknamed zombie worms) that extract nutrients by drilling into bones.

Mark Twain publishes Tom Sawyer.

Painting by Pierre-Auguste Renoir: Bal du moulin de la Galette (commonly known as Dance at Le moulin de la Galette) is housed at the Musée d'Orsay in Paris and is one of Impressionism's most celebrated masterpieces. The painting depicts a typical Sunday afternoon at Moulin de la Galette in the district of Montmartre in Paris. In the late 19th century, working class Parisians would dress up and spend time there dancing, drinking, and eating galettes into the evening. Like other works of Renoir's early maturity, Bal du moulin de la Galette is a typically Impressionist snapshot of real life. It shows a richness of form, a fluidity of brush stroke, and a flickering light.

Custer Killed at Little Bighorn On June 25th, in Dakota territory, at the Little Big Horn, General George Armstrong Custer (who graduated from West Point in 1861, last in his class) and all 256 troops were killed. The defeat of Custer in the Battle of the Little Big Horn was the last Indian victory.

Alexander Graham Bell patents the telephone.

Charles Doolittle Walcott becomes the first to successfully find and describe elusive trilobite legs, ending speculation about how the animals moved.

Eugen Goldstein shows that the radiation in a vacuum tube produced when an electric current is forced through the tube starts at the cathode. Goldstein introduces the term CATHODE RAY to describe the light emitted.

Ferdinand Hurter and Vero Charles Driffield begin systematic evaluation of sensitivity characteristics of photographic emulsions the science of sensitometry. They also invent a photographic exposure estimation device known as an actinograph. In 1920, William Bates Ferguson edits a memorial volume: The Photographic Researches of Ferdinand Hurter & Vero C. Driffield: Being a Reprint of Their Published Papers, Together With a History of Their Early Work & a Bibliography of Later Work on the Same Subject.

The Compromise of 1877 ends Reconstruction and gives the Presidency to Rutherford B. Hayes. Although Democratic presidential candidate Samuel Tilden won the popular vote, Southern Democratic leaders agreed to support Rutherford Hayes' efforts to obtain the disputed electoral votes of Florida, Louisiana, and South Carolina in exchange for the withdrawal of the last federal troops from the South and the end of federal efforts to protect the civil rights of African Americans.

Rutherford B. Hayes becomes nineteenth president of the United States.

Early color photo of Agen, France, by Louis Ducos du Hauron, 1877. The cathedral in the scene is the Cath drale Saint-Caprais d'Agen.

Painting by Claude Monet: The Gare Saint-Lazare: Arrival of a Train. The Gare Saint-Lazare has been represented in a number of artworks. It attracted artists during the Impressionist period and many of them lived very close to the Gare St-Lazare during the 1870s and 1880s. In 1877, painter Claude Monet rented a studio near the Gare Saint Lazare. That same year he exhibited seven paintings of the railway station in an impressionist painting exhibition. He completed several paintings of this subject. The Gare Saint-Lazare is far different than Monet's previous paintings of harbors, boats and oceans that viewers had seen before. The Gare Saint-Lazare series of paintings lead the viewers through a tour of the train station in different points of the day. Monet exemplifies the modern life, in all its chaos and instability, The steam coming from the trains creates a way of dissolving the train and showing the impressionistic style of blending colors and light. Everything dissipates with the steam of the train and turns into a flurry of blended colors. As said by mile Zola, Monet is able to turn a normally dirty and gritty place into a peaceful and beautiful scene You can hear the trains rumbling in, see the smoke billow up under the huge roofs that is where painting is today our artists have to find the poetry in train station, the way their fathers found the poetry in forests and rivers. Monet's work on the Gare Saint-Lazare is unparalleled in its evocation of steamm and the smoke-filled station. In spite of the impressionist style, the work reproduces accurately the topography of the area, even allowing one to deduce the precise point where the artist was standing while painting. This is the first time an artist had showed a single theme through a series of variations

Painting by Claude Monet: The Gare Saint-Lazare. The Gare Saint-Lazare has been represented in a number of artworks. It attracted artists during the Impressionist period and many of them lived very close to the Gare St-Lazare during the 1870s and 1880s. In 1877, painter Claude Monet rented a studio near the Gare Saint Lazare. That same year he exhibited seven paintings of the railway station in an impressionist painting exhibition. He completed several paintings of this subject. The Gare Saint-Lazare is far different than Monet's previous paintings of harbors, boats and oceans that viewers had seen before. The Gare Saint-Lazare series of paintings lead the viewers through a tour of the train station in different points of the day. Monet exemplifies the modern life, in all its chaos and instability, The steam coming from the trains creates a way of dissolving the train and showing the impressionistic style of blending colors and light. Everything dissipates with the steam of the train and turns into a flurry of blended colors. As said by mile Zola, Monet is able to turn a normally dirty and gritty place into a peaceful and beautiful scene You can hear the trains rumbling in, see the smoke billow up under the huge roofs that is where painting is today our artists have to find the poetry in train station, the way their fathers found the poetry in forests and rivers. Monet's work on the Gare Saint-Lazare is unparalleled in its evocation of steamm and the smoke-filled station. In spite of the impressionist style, the work reproduces accurately the topography of the area, even allowing one to deduce the precise point where the artist was standing while painting. This is the first time an artist had showed a single theme through a series of variations

Painting by Gustave Caillebotte: Paris Street; Rainy Day (French Rue de Paris, temps de pluie) is his best known work. It shows a number of individuals walking through the Place de Dublin, in 1877 known as the Carrefour de Moscou, at an intersection to the east of the Gare Saint-Lazare in north Paris. Although Caillebotte was a friend and patron of many of the impressionist painters, and this work is part of that school, it differs in its realism and reliance on line rather than broad brush strokes. Caillebotte's interest in photography is evident. The figures in the foreground appear "out of focus", those in the mid-distance (the carriage and the pedestrians in the intersection) have sharp edges, while the features in the background become progressively indistinct. The severe cropping of some figures — particularly the man to the far right — further suggests the influence.

The US flag is modified to have thirty-eight stars, reflecting the addition of one new state: Colorado.

Frederick Douglass becomes US Marshal for the District of Columbia.

A new Archaeopteryx fossil is discovered in Solnhofen, complete with a toothy jaw. This well-preserved fossil, which will become known as the Berlin Archaeopteryx, supports Huxley's previous observations about its reptilian affinities.

Comparative anatomy professor François Louis Paul Gervais undertakes thin-section microscopy studies of fossil eggs. His work will be largely forgotten until Roy Chapman Andrews discovers dinosaur eggs in Mongolia in the 1920s.

Germ Theory of Disease: Louis Pasteur presented his Germ Theory of disease. Joseph Lister went on to initiate the practice of insuring that surgeons were clean before they conducted surgery.

Phonograph Invented by Edison On December 15th, Thomas Edison applied for a patent for his phonograph. Edison initially believed it would be used to record business sessions, or family voices. Edison became famous with this invention and was invited to the White House for a demonstration.

Thomas Edison and Joseph Wilson Swan produce first successful incandescent electric light.

Photograph by Eadweard Muybridge: Sallie Gardner at a Gallop, also known as The Horse in Motion, is a series of photographs consisting of a galloping horse, the result of a photographic experiment on June 15, 1878. Sometimes cited as an early silent film, the series and later experiments like it were precursors to the development of motion pictures. The series consists of 24 photographs shot in rapid succession that were shown on a zoopraxiscope. Muybridge was commissioned by Leland Stanford, the industrialist and horseman, who was interested in gait analysis. The purpose of the shoot was to determine whether a galloping horse ever lifts all four feet completely off the ground during the gait; at this speed, the human eye cannot break down the action. Muybridge arranged 24 cameras, 27 inches apart, along a track parallel to the horse's path, with their shutters controlled by trip wires triggered by the horse's legs. The stop-action photographs showed the mare lifted all four legs off the ground at certain points during the gallop. Run together, the photographs produced the effect of the horse in motion, or a film.

Charlotte Hill collects a well-preserved fossil butterfly, later named Prodryas persephone, from the Florissant Formation in Colorado. The fossil is about 35 million years old.

Entire skeletons of Iguanodon are discovered in Belgium, enabling a more accurate reconstruction of this dinosaur than those of Owen and Waterhouse Hawkins in the 1850s. Engineer-turned-paleontologist Louis Dollo will publish the first of several papers on these fossils in 1882.

Willgodt T. Odhner granted a patent for a calculating machine

Eadweard Muybridge uses a row of cameras with trip-wires to make a high-speed photographic analysis of a galloping horse. Each picture is taken in less than the two-thousandth part of a second, and they are taken in sufficiently rapid sequence (about 25 per second) that they constitute a brief real-time "movie" that can be viewed by using a device such as a zoetrope, a photographic "first".

Heat ripening of gelatin emulsions is discovered. This greatly increases sensitivity and makes possible very short "snapshot" exposures.

The world's first oil tanker — the Zoroaster — is launched, in the Caspian Sea. The ship was designed by Ludvig Nobel, the brother of Alfred Nobel.

The first electric street lighting appears, in London.

Painting by William-Adolphe Bouguereau: The Birth of Venus, one of Bouguereau's most famous paintings (now at the Musée d'Orsay, Paris). It depicts not the actual birth of Venus from the sea, but her transportation in a shell as a fully mature woman from the sea to Paphos in Cyprus. She is considered the epitome of the Classical Greek and Roman ideal of the female form and beauty, on par with Venus de Milo. For Bouguereau, it is considered a tour de force. The canvas stands at just over 300 centimetres (9 feet 10 inches) high, and 218 cm (7 ft 2 in) wide. The subject matter, as well as the composition, resembles a previous rendition of this subject, Sandro Botticelli's The Birth of Venus, as well as Raphael's The Triumph of Galatea.

F. W. Woolworth opens his first "five and dime store".

Eight-year-old Maria de Sautuola finds a Paleolithic cave drawing of bison on her father's property in Spain. It is the oldest artwork yet discovered, but it will be dismissed as a forgery for years, considered too beautiful to be the work of prehistoric savages.

Charles Lapworth resolves a priority dispute between Adam Sedgwick and Roderick Murchison by assigning older rocks to the Cambrian (named by Sedgwick), younger rocks to the Silurian (named by Murchison), and naming the Ordivician System in between.

The United States Geological Survey is formed.

Charles Darwin and his son Francis publish the results of their studies on plant responses to light, explaining that phototropism (bending toward the light) results from light reaching the top of a plant's shoot.

Pierre Curie discovers the piezoelectric effect: certain substances produce an electric current when they are physically distorted, and conversely they are physically distorted when an electric current is applied to them. This effect has many applications, including, in the 21st century, the construction of high-end tweeters in stereo systems.

James Albert Bonsack invents the first automated cigarette-rolling machine after seeing a tobacco company offer a prize for the first machine to roll and cut a cigarette. The Bonsack machine could roll up to 210 cigarettes per minute, compared to the average of four cigarettes per minute that could be rolled by hand. The Bonsack machine revolutionized the cigarette industry by making it possible to mass-produce inexpensive cigarettes.

James A Garfield becomes twentieth president of the United States.

Six months after taking office, Garfield becomes the second US President to be assassinated, when he was shot by Charles J. Guiteau — a disgruntled and impoverished would-be office holder. When he purchased the pistol used in the assassination, he chose to buy one with an ivory handle because he thought it would look good as a museum exhibit after the assassination.

Painting by Pierre-Auguste Renoir: The Umbrellas (French: Les Parapluies) is an oil-on-canvas painting, painted in two phases in the 1880s. It is owned by the National Gallery in London as part of the Lane Bequest, but is displayed alternately in London and at the Dublin City Gallery The Hugh Lane. In May 2013, it returned to Dublin for a six-year period. Renoir began the painting in about 1880-81, using the loose brushwork with dark and bright tones typical of the Impressionist movement. In about 1885-6, after losing his attachment to Impressionism and drawing inspiration from classical art he had seen in Italy and the works of Ingres and Cézanne, he reworked parts of the painting, particularly the principal female figure to the left of the frame, in a more classical linear style using more muted colours, and added the background and the umbrellas themselves. X-ray photography has shown that the clothing of the female figure was originally different: she wore a hat and her dress had horizontal rows of frills, with white lace at its cuffs and collar, suggesting that she was middle class, whereas the simpler clothes in the revised painting mark her out as a member of the working class, a grisette not a bourgeoise. The x-ray analysis and then the changing fashions allow the periods of work to be dated with reasonable accuracy.

In January, the Tennessee State Legislature votes to segregate railroad passenger cars.

On the Fourth of July, Booker T. Washington opens Tuskegee Institute in central Alabama.

Chester A. Arthur becomes twenty-first president of the United States.

Clara Barton founds the American Red Cross.

Hermann Ludwig von Helmholtz shows that the electrical charges in atoms are divided into definite integral portions, suggesting the idea that there is a smallest unit of electricity.

Painting by Édouard Manet: A Bar at the Folies-Bergère (French: Un bar aux Folies Bergère), is considered Manet's last major work. It depicts a scene in the Folies Bergère nightclub in Paris. It originally belonged to the composer Emmanuel Chabrier, who was Manet's neighbor, and hung over his piano. The painting exemplifies Manet's commitment to Realism in its detailed representation of a contemporary scene. Many features have puzzled critics but almost all of them have been shown to have a rationale, and the painting has been the subject of numerous popular and scholarly articles. The central figure stands before a mirror, although critics — accusing Manet of ignorance of perspective and alleging various impossibilities in the painting — have debated this point since the earliest reviews were published. In 2000, however, a photograph taken from a suitable point of view of a staged reconstruction was shown to reproduce the scene as painted by Manet.

Painting by John Singer Sargent: Lady with the Rose (Charlotte Louise Burckhardt). The subject of this portrait was the twenty-year-old daughter of a Swiss merchant and his American wife, members of the artist's cosmopolitan circle in Paris. Did she enjoy the experience? Look at her expression.

Sculpture by Auguste Rodin: The sculpture, The Kiss, was originally titled Francesca da Rimini, as it depicts the 13th-century Italian noblewoman immortalised in Dante's Inferno (Circle 2, Canto 5) who falls in love with her husband Giovanni Malatesta's younger brother Paolo. Having fallen in love while reading the story of Lancelot and Guinevere, the couple are discovered and killed by Francesca's husband. In the sculpture, the book can be seen in Paolo's hand. The lovers' lips do not actually touch in the sculpture, suggesting that they were interrupted and met their demise without their lips ever having touched. When critics first saw the sculpture in 1887, they suggested the less specific title Le Baiser (The Kiss).

Britain Invades Egypt The British invaded Egypt in response to anti foreign riots. The British defeated the army of Arabi Pasha at Al Tell. On September 15th they captured Cairo. Arabi pasha the nationalist leader was deported to Ceylon.

Karl Alfred von Zittel describes an exceptionally well-preserved pterosaur wing showing flight membranes in detail.

Charles Darwin publishes his final letter to Nature, on the dispersal of freshwater bivalves. His obituary appears the same month. In this paper, Darwin acknowledges the assistance of W. D. Crick or Northampton. Later, Crick's grandson — Francis Crick — will be one of the co- discoverers of the structure of DNA.

John William Strutt, Lord Rayleigh, discovers that the ratio of the atomic mass of oxygen to that of hydrogen is not 16 exactly, as had been assumed, but 15.882.

The first hydro-electric plant opens, in Wisconsin.

On October 16, the United States Supreme Court declares invalid the Civil Rights Act of 1875, stating that the federal government cannot bar corporations or individuals from discriminating on the basis of race.

On May 25, the New York boroughs of Manhattan and Brooklyn were linked with the opening of the Brooklyn Bridge. The bridge was the first steel suspension bridge erected in the United States. It was built at a cost of $16 million and 26 lives. When it opened, the Brooklyn Bridge was the longest suspension bridge in the world.

Pierre Émile Duclaux introduces the custom of designating an enzyme by the by the name of the substrate on which its action was first reported and adding the suffix -ase.

Geologist James Hall names Cryptozoon, based on cabbagelike rocks up to meter across. Although Hall's biologic interpretation of these structures will be heavily criticized, it will ultimately prove correct.

Scheutz invents the first printing calculator

German engineer Gottlieb Daimler creates a portable engine that leads to the age of the automobile.

George Eastman invents flexible, paper-based photographic film.

Painting by Vincent van Gogh: The Potato Eaters (Dutch: De Aardappeleters). Van Gogh said he wanted to depict peasants as they really were. He deliberately chose coarse and ugly models, thinking that they would be natural and unspoiled in his finished work: "You see, I really have wanted to make it so that people get the idea that these folk, who are eating their potatoes by the light of their little lamp, have tilled the earth themselves with these hands they are putting in the dish, and so it speaks of manual labor and — that they have thus honestly earned their food. I wanted it to give the idea of a wholly different way of life from ours — civilized people. So I certainly don't want everyone just to admire it or approve of it without knowing why."

Grover Cleveland becomes twenty-second president of the United States.

Johann Jakob Balmer discovers the formula for the hydrogen spectrum that will later inspire Niels Bohr to develop his model of the atom.

James Dewar invents a thermos bottle in which heat is prevented from leaking via vacuum between two glass walls. The model becomes known as the Dewar Flask.

The world's first skyscraper, the Home Insurance Company Building, is erected in Chicago.

Painting by Georges Seurat: A Sunday Afternoon on the Island of La Grande Jatte (French: Un dimanche après-midi à l'Île de la Grande Jatte) is one of the artist's most famous works. It is a leading example of pointillism technique, executed on a large canvas. Seurat's composition includes a number of Parisians at a park on the banks of the River Seine. Inspired by optical effects and perception inherent in the color theories of Michel Eugène Chevreul, Ogden Rood and others, Seurat adapted this scientific research to his painting. Seurat contrasted miniature dots or small brushstrokes of colors that when unified optically in the human eye were perceived as a single shade or hue. He believed that this form of painting, called divisionism at the time but now known as pointillism, would make the colors more brilliant and powerful than standard brushstrokes.

Slavery is abolished in Cuba.

Daimler produces his first car.

A. Ficatier publishes an account of the discovery of a trilobite perforated with two holes (perhaps to hang on a thread) at a Magdalenian- age site in France. The fossil lends the site its name of La Grotte du Trilobite.

John Bell Hatcher develops the "ant hill method of collecting minute fossils," collecting hundreds of tiny fossil teeth and jaws pushed to the surface by ants. He even carries shovelfuls of ants and sediment to other fossil localities in need of excavation by the arthropods.

William Crookes proposes that atomic weights measured by chemists are averages of the weights of different kinds of atoms of the same element (although it will not be until 1910 that Frederick Soddy identifies these different kinds of atoms as isotopes).

African-American players are banned from major league baseball.

Slavery is abolished in Brazil

Interstate Commerce Act Passed On February 4, President Cleveland signed into law the first bill regulating the railroads. The act, which called for just and equal rates, also limited pooling (secret pacts between railroads). This measure received broad support in the Congress.

The United States acquires Pearl Harbor, Hawaii, as a coaling station and future naval base.

Worthington George Smith excavates a Bronze Age grave of a mother and child, surrounded by at least 200 fossil sea urchins, on Dunstable Downs. He nicknames the mother Maud.

Harry Govier Seeley determines that dinosaurs consist of "lizard- hipped" (saurischian) and "bird-hipped" (ornithischian) branches.

Albert Michelson and Edward Morley measure the velocity of light in two directions, attempting to detect the proper motion of Earth through the ether (a hypothesized fluid that was assumed to fill all space, providing a medium for the transport of electromagnetic waves). The Michelson Morley experiment reveals no evidence of motion.

Ernst Mach notes that airflow becomes disturbed at the speed of sound.

Dorr E. Felt was granted a patent for the Comptometer.

Introduction of the Comptometer by Felt & Tarrant Co

Celluloid film base introduced.

Painting by Sir Lawrence Alma-Tadema: The Roses of Heliogabalus shows a group of Roman diners at a banquet, being swamped by drifts of pink rose petals falling from a false ceiling above. The Roman emperor Elagabalus reclines on a platform behind them, wearing a golden robe and a tiara, watching the spectacle with other garlanded guests. A woman plays the double pipes beside a marble pillar in the background, wearing the leopard skin of a maenad, with a bronze statue of Dionysus, based on the Ludovisi Dionysus, in front of a view of distant hills. The painting depicts a (probably invented) episode in the life of the Roman emperor Elagabalus, also known as Heliogabalus, (204–222), taken from the Augustan History. Although the Latin refers to "violets and other flowers", Alma-Tadema depicts Elagabalus smothering his unsuspecting guests with rose petals released from a false ceiling.

Painting by Vincent Van Gogh: Portrait of Postman Roulin. In February 1888 Van Gogh moved to Arles, in the south of France, and continued to paint landscapes and portraits. Between late July 1888 and April 1889, he painted at least six portraits of Joseph-Etienne Roulin (1841–1903), a postman in Arles. Here, the artist concentrated on Roulin's head, which he described in a letter as "somewhat like Socrates, hardly any nose at all, a high forehead, bald crown, little gray eyes, bright red chubby cheeks, a big pepper-and-salt beard, large eyes."

Painting by Vincent van Gogh: Sunflowers (original title, in French: Tournesols). Sunflowers are the subject of two series of still life paintings by the Dutch painter . The earlier series, executed in Paris in 1887, depicts the flowers lying on the ground, while the second set, executed a year later in Arles, shows bouquets of sunflowers in a vase. In the artist's mind both sets were linked by the name of his friend Paul Gauguin, who acquired two of the Paris versions. About eight months later van Gogh hoped to welcome and to impress Gauguin again with Sunflowers, now part of the painted Décoration for the Yellow House that he prepared for the guestroom of his home in Arles, where Gauguin was supposed to stay. After Gauguin's departure, van Gogh imagined the two major versions as wings of the Berceuse Triptych, and finally he included them in his Les XX in Bruxelles exhibit

George Eastman Patents Camera George Eastman patents the hand held camera.

Slavery is abolished in Brazil, bringing to an end of the legal sanction of slavery in the Americas.

Heinrich Rudolf Hertz produces and detects radio waves for the first time. Radio waves will be called Hertzian waves until renamed by Marconi, who calls them radiotelegraphy waves.

Babbage's Analytical Engine Operates For The First Time

Burroughs Receives Patent for Calculating Machine

Introduction of its adder-lister by William Seward Burroughs

Eastman patents Kodak roll-film camera.

Louis Le Prince makes Roundhay Garden Scene. It is believed to be the first-ever motion picture on film.

John Boyd Dunlop, trained as a veterinary surgeon, devises the first practical pneumatic tire in response to a request from his son for a more comfortable tricycle. His first effort involved an inflated section of garden hose, fitted to the rear wheels of the tricycle. Although born in Scotland, Dunlop spent most of his life in Northern Ireland, where his image occurs on the current £10 note, issued by the Northern Bank.

Painting by Vincent van Gogh: The Starry Night depicts the view from the east-facing window of his asylum room at Saint-Rémy-de-Provence, just before sunrise, with the addition of an idealized village. It is regarded as among Van Gogh's finest works, and is one of the most recognized paintings in the history of Western culture. In the aftermath of the 23 December 1888 breakdown that resulted in the self-mutilation of his left ear, Van Gogh voluntarily admitted himself to the Saint-Paul-de-Mausole lunatic asylum on 8 May 1889. Housed in a former monastery, Saint-Paul-de-Mausole catered to the wealthy and was less than half full when Van Gogh arrived, allowing him to occupy not only a second-story bedroom but also a ground-floor room for use as a painting studio.

Florida becomes the first state to use the poll tax to disenfranchise black voters.

Frederick Douglass is appointed minister to Haiti.

Benjamin Harrison becomes twenty-third president of the United States.

Oklahoma Land Rush The last major unsettled territory in the United States (which had been exclusively Indian) is opened for settlement. Over 200,000 settlers gather at the borders of the territory awaiting the opportunity to seize land. On the first day the territory was opened, 12,000 settlers arrived in Guthrie, Oklahoma.

George Francis Fitzgerald formulates the principle that objects shrink slightly in the direction they are traveling, now known as the Fitzgerald-Lorenz contraction, since Hendrik Antoon Lorentz reaches the same conclusion a few years later.

Nintendo is founded as Nintendo Koppai on 23 September 1889 by craftsman Fusajiro Yamauchi in Shimogyo-ku, Kyoto, Japan, as an unincorporated establishment, to produce and distribute Japanese playing cards, or karuta (from Portuguese carta, 'card'), most notably hanafuda ('flower cards').

Herman Hollerith lodges patent for Punch Card technology

The first commercially available transparent celluloid roll film is introduced by the Eastman Company, later renamed the Eastman Kodak Company and commonly known as Kodak.

About 60 common starlings are released into New York's Central Park by Eugene Schieffelin, as part of an effort to introduce every bird species mentioned in the works of William Shakespeare into North America. The original 60 birds have since swelled in number to 150 million, occupying an area extending from southern Canada and Alaska to Central America.

The US flag is modified to have forty-three stars, reflecting the addition of five new states: Idaho, Montana, North Dakota, South Dakota, and Washington.

The United States Army massacres 200 Indians at Wounded Knee in South Dakota, ending the Indian wars of resistance.

Herman Hollerith designs tabulating machines for 1890 U.S. Census

Hypertext Pioneer Vannevar Bush Is Born

US Census Bureau announces results using Herman Hollerith's machine

The US flag is modified to have forty-four stars, reflecting the addition of one new state: Wyoming.

The first basketball game is played, in Springfield, Massachusetts.

Gabriel Lippmann announces a "method of reproducing colors photographically based on the phenomenon of interference".

William Kennedy Laurie Dickson develops the "kinetoscopic" motion picture camera while working for Thomas Edison.

Painting by Paul Gauguin: Spirit of the Dead Watching (Manao tupapau) is an oil on burlap canvas depicting a naked Tahitian girl lying on her stomach. An old woman is seated behind her. Gauguin said the title may refer to either the girl imagining the ghost, or the ghost imagining her. The subject of the painting is Gauguin's young native wife Teha'amana (called Tehura in his letters), who one night, according to Gauguin, was lying in fear when he arrived home late: " ... motionless, naked, belly down on the bed: she stared up at me, her eyes wide with fear, '... Perhaps she took me, with my anguished face, for one of those legendary demons or specters, the Tupapaus that filled the sleepless nights of her people."

A record 230 people are lynched in the United States this year; 161 are black and 69 white.

Joseph Whiteaves describes Anomalocaris, meaning "anomalous shrimp," from the Cambrian. The fossil that Whiteaves identifies as a shrimp will later prove to be part of a much larger animal.

Painting by Edvard Munch: The Scream (Norwegian: Skrik). The same title — The Scream — is the popular name given to each of four versions of a composition, created as both paintings and pastels, by Norwegian Expressionist artist between 1893 and 1910. The German title Munch gave these works is Der Schrei der Natur (The Scream of Nature). The works show a figure with an agonized expression against a landscape with a tumultuous orange sky. Arthur Lubow has described The Scream as "an icon of modern art, a Mona Lisa for our time." Edvard Munch created the four versions in various media. The National Gallery in Oslo, Norway, holds one of two painted versions (1893, shown here). The Munch Museum holds the other painted version and a pastel version from 1893. The fourth version (pastel, 1895) was sold for $119,922,600 at Sotheby's Impressionist and Modern Art auction on 2 May 2012 to financier Leon Black, the fourth highest nominal price paid for a painting at auction. The painting was on display in the Museum of Modern Art in New York from October 2012 to April 2013.

Painting by Franz Stuck: The Sin (German: Die Sünde) depicts the nude Eve with a big serpent wrapped around her body. In the upper right corner is a bright field, while the rest of the surroundings are dark. The motif was conceived as a development of Stuck's 1889 painting Sensuality (Die Sinnlichkeit). The Sin was first exhibited in 1893, at the inaugural exhibition of the Munich Secession, where it caused a sensation. It was bought by the Neue Pinakothek in Munich and became a critical and commercial breakthrough for Stuck. It has since become an emblematic painting for the symbolist movement. Stuck made twelve known versions of the painting. Some of these can be viewed at the Neue Pinakothek in Munich, the National Gallery in Berlin, the Galleria di arte Moderna in Palermo, the Frye Art Museum in Seattle, and at the Villa Stuck in Munich, where it is enshrined in the artist's Künstleraltar.

Grover Cleveland becomes twenty-fourth president of the United States.

Entomologist E.B. Poulton studies caterpillars from the species Gastropacha quercifolia, noting how siblings look different depending on where they live and what they eat. His discovery will become known as phenotypic plasticity.

Wilhelm Wien discovers that the maximum wavelength emitted by hot body varies inversely with its absolute temperature. Wien's law becomes useful in establishing the temperature of stars. The problems he has with deriving an equation to describe black-body radiation lead to Max Planck's introduction of the quantum in 1900.

Painting by Claude Monet: The Rouen Cathedral, Full Sunlight was one of a series, with each painting in the series intended to capture the facade of the Rouen Cathedral at different times of the day and year, reflecting changes in its appearance under different lighting conditions. The Rouen Cathedral paintings, more than thirty in all, were made in 1892 and 1893, then reworked in Monet's studio in 1894. Monet rented spaces across the street from the cathedral, where he set up temporary studios for the purpose. In 1895, he selected what he considered to be the twenty best paintings from the series for display at his Paris dealer's gallery, and of these he sold eight before the exhibition was over. Pissarro and Cézanne visited the exhibition and praised the series highly. When Monet painted the Rouen Cathedral series, he had long since been impressed with the way light imparts to a subject a distinctly different character at different times of the day and the year, and as atmospheric conditions change. For Monet, the effects of light on a subject became as important as the subject itself.

Eugène Dubois publishes his monograph of Pithecanthropus erectus, or Java Man, a missing link between humans and apes.

French paleontologist Charles Brongniart describes a fossil dragonfly from the Carboniferous with a 2-foot (63-centimeter) wingspan. The find implies a higher oxygen content in the Earth's ancient atmosphere.

The intricately carved mammoth ivory figurine known as the Lady (or Venus) of Brassempouy is discovered in France. At roughly 25,000 years old, it ranks among the earliest known depictions of a human face.

Joseph John (J.J.) Thomson announces that he has found that the velocity of cathode rays is much lower than that of light.

The Lumiere Brothers introduce moving pictures.

The Sino-Japanese War ends and Japan gains dominance over Korea and Taiwan.

A team of paleontologists, including Samuel Williston, Elmer Riggs and Barnum Brown, successfully excavates a Triceratops fossil in Wyoming.

Charles Thomson Rees Wilson develops the CLOUD CHAMBER, a box containing a gas that is saturated. When a charged particle passes through the gas, small droplets are formed that make the track of the particle visible. The cloud chamber becomes a powerful tool in particle physics.

Pierre Curie shows that as the temperature of the magnet is increased, there is a level at which the magnetism is disrupted and ceases to exist. This temperature is still called the Curie point.

Wilhelm Konrad Röntgen (Roentgen) discovers X-rays, which will soon be applied in the visualization of bodily structures and in the induction of genetic mutations (both intentionally and accidentally).

Auguste and Louis Lumi re invent the cin matographe.

Cornflakes are invented in Battle Creek, Michigan, by John Harvey Kellogg — the chief medical officer of the Battle Creek sanitarium.

Currency as Art: United States, Educational Series, One Dollar Bill. "Educational Series" is the informal name used by numismatists to refer to a series of United States silver certificates produced by the U.S. Treasury in 1896. The One Dollar bill shows a personification of History instructing a youth, pointing to a panoramic view of the Potomac River and Washington, D.C. The Washington Monument and the Capitol are visible in the background. The United States Constitution is displayed to the right. Circling the motif are the last names of famous Americans.

Currency as Art: United States, Educational Series, Two Dollar Bill. "Educational Series" is the informal name used by numismatists to refer to a series of United States silver certificates produced by the U.S. Treasury in 1896. The Two Dollar bill shows Science (center) presenting the two children, Steam and Electricity, to the more mature figures of Commerce (left) and Manufacture (right).

Currency as Art: United States, Educational Series, Five Dollar Bill. "Educational Series" is the informal name used by numismatists to refer to a series of United States silver certificates produced by the U.S. Treasury in 1896. The Five Dollar bill shows Electricity surrounded by other allegorical figures, representing the dominant force in the world. The United States Capitol building can be seen behind the female figures. The naked breasts of the female figures on the $5 silver certificate reportedly caused some minor controversy when several Boston society ladies took offense to the design. Some bankers reportedly refused to accept the notes in transactions, and the term "banned in Boston" allegedly originates from the $5 silver certificate.

The first Sunday newspaper comics appear.

The US flag is modified to have forty-five stars, reflecting the addition of one new state: Utah.

In Plessy vs. Ferguson, the United States Supreme Court declares legalized segregation in the United States to be constitutional.

The will of Alfred Nobel establishes annual prizes for peace, science, and literature.

Dublin anatomist Daniel Cunningham concludes that Neanderthals represent an intermediate step between Pithecanthropus erectus and modern humans.

J. de Morgan describes nine pierced fossil urchins found in a Chalcolithic tomb at Toukh.

Less than three months after the discovery of x-rays, Dartmouth College Professor of Physics Edwin Frost and his brother, the then physician in chief of Mary Hitchcock Hospital, Gilman Frost, MD, take the first clinical X-ray in the US — an image of Eddie McCarthy's fractured left wrist.

Antoine-Henri Becquerel discovers rays produced by uranium — the first observation of natural radioactivity.

Painting by : The Boulevard Montmartre on a Winter Morning. In the late 1890s, Pissarro painted a series of works depicting the boulevards, as seen from his windows, at various times of year.

Painting by Paul Gauguin: Where Do We Come From? What Are We? Where Are We Going?. Gauguin inscribed the original French title in the upper left corner: D'où Venons Nous / Que Sommes Nous / Où Allons Nous. The inscription the artist wrote on his canvas has no question mark, no dash, and all words are capitalized. In the upper right corner he signed and dated the painting: P. Gauguin / 1897. The painting was created in Tahiti, and is in the Museum of Fine Arts in Boston, Massachusetts, USA. Gauguin had been a student at the Petit Séminaire de La Chapelle-Saint-Mesmin, just outside Orléans, from the age of eleven to the age of sixteen. His subjects there included a class in Catholic liturgy; the teacher for this class was the Bishop of Orléans, Félix-Antoine-Philibert Dupanloup. Dupanloup had devised his own catechism to be lodged in the minds of the young schoolboys, and to lead them towards proper spiritual reflections on the nature of life. The three fundamental questions in this catechism were: "Where does humanity come from?" "Where is it going to?", "How does humanity proceed?". Although in later life Gauguin was vociferously anticlerical, these questions from Dupanloup's catechism obviously had lodged in his mind, and "where?" became the key question that Gauguin asked in his art.

William McKinley becomes twenty-fifth president of the United States. McKinley was the last veteran of the Civil war to serve as President. He enlisted as a private in the 23rd Ohio Infantry, and by the end of the war he had been promoted several times, finally leaving the service with the rank of Captain.

Zionist activity begins in the Middle East, under the World Zionist Congress called by Theodore Herzl.

Gabriel Bertrand coined the term COENZYME to designate inorganic substances which were necessary to activate certain enzymes.

Renowned physicist Lord Kelvin gives a lecture at London's Victoria Institute claiming that the sun, which is cooling from its initial formation, can be no more than 20 million years old.

Joseph John Thomson discovers the electron, the first known particle that is smaller than an atom, in part because he has better vacuum pumps that were previously available. He, and independently, Emil Wiechert, determine the ratio of mass to charge of the particles by deflecting them by electric and magnetic fields.

Marie Curie begins research of "uranium rays" that will lead to the discovery of radioactivity.

America's first subway opens, in Boston.

Russian physicist Alexander Popov uses an antenna to transmit radio waves over a distance of 5 km.

The United States Supreme Court, in Williams vs. Mississippi, rules that poll taxes and literacy tests do not violate the Constitution.

United States invades Cuba and defeats Spain in the Spanish-American War.

Marie and Pierre Curie discovered that thorium, gives off "uranium rays", which Marie renames RADIOACTIVITY.

Kodak introduces the Folding Pocket Kodak.

Currency as Art: The Black Eagle one-dollar silver certificate produced in 1899 in the United States. The note measured 7.38 × 3.18 in and featured a bald eagle with its wings spread. The note was also referred to as "Eagle of the Capitol", because the United States Capitol is visible behind the eagle. The note was issued from 1899 to 1923 and the Bureau of Engraving and Printing (BEP) printed 3,604,239,600 Black Eagles. The 1899 series replaced the 1896 Educational Series notes. One reason for the redesign was to make counterfeiting more difficult.

Currency as Art: In 1899, the US two-dollar Silver Certificate was redesigned with a small portrait of George Washington surrounded by allegorical figures representing agriculture and mechanics.

Currency as Art: The 1899 United States five-dollar Silver Certificate is known as the Indian Chief Note note. The note features Sioux chief Running Antelope. It is the only US federal paper currency featuring a named Native American. G.F.C. Smillie of the U.S. Bureau of Engraving and Printing (BEP) engraved the portrait of Running Antelope of the Hunkpapa Sioux which is found on this five-dollar Silver Certificate. During the photoshoot Running Antelope wore his three-feathered headdress but when engraving for the note, his headdress did not fit in the space of the 1899 five-dollar Silver Certificate. Smillie found an image of a feathered-War bonnet that was likely Pawnee and he used it in the engraving. Because of the incorrect headdress, the engraved portrait was controversial. The Sioux were enemies of the Pawnee so the depiction of a Sioux chief with his enemies war bonnet became a controversy.

British physicist Ernest Rutherford discovers the radioactivity from uranium has at least two different forms, which he calls alpha and beta rays.

Fritz Geisel, Antoine-Henri Becquerel, and Marie Curie proved the beta rays consist of high-speed electrons.

The Boer war breaks out between Afrikaners and the British in southern Africa.

Photograph by Alfred Stieglitz: Spring Showers, The Street Cleaner.

Booker T. Washington publishes Up from Slavery, his autobiography.

Paul Karl Ludwig Drude shows that moving electrons conduct electricity in metals.

Paul Ulrich Villard is the first to observe a radiation that is more penetrating than X-rays, now called gamma rays.

Kodak introduces their first Brownie, a very inexpensive user-reloadable point-and-shoot box camera.

On December 14, Max Planck announces the first step toward quantum theory. He states that substances can emit light only at certain energies, which implies that some physical processes are not continuous, but occur only in specified amounts called quanta.

Sully Prudhomme awarded the Nobel Prize in Literature "in special recognition of his poetic composition, which gives evidence of lofty idealism, artistic perfection and a rare combination of the qualities of both heart and intellect".

Eug ne Atget: Marchand d'Abat-Jours, an albumen silver print, now in the J. Paul Getty Museum.

Painting by Gustav Klimt: Judith and the Head of Holofernes (also known as Judith I) depicts the biblical character of Judith holding the severed head of Holofernes. Judith I reveals a curious symbolic and compositional consonance with The Sin by Franz Stuck: the temptation illustrated by the German painter becomes the model for Klimt's femme fatale by suggesting the posture of the disrobed and evanescent body as focal piece of the canvas, as well as the facial set. Judith's force originates from the close-up and the solidity of posture, rendered by the orthogonal projection of lines: to the body's verticality (and that of Holofernes') corresponds to the horizontal parallels in the lower margin: those of the arm, the shoulders joined by the collier, and finally the hair base.

Theodore Roosevelt becomes twenty-sixth president of the United States.

Queen Victoria dies and is succeeded by her son, Edward VII.

Harry Govier Seeley publishes Dragons of the Air, the first popular book on pterosaurs, arguing that they were warm-blooded and should be classified parallel to birds, in between reptiles and mammals. This is in direct opposition to Richard Owen's classification of pterosaurs as cold-blooded and poor flyers.

Herman Hollerith patents Apperatus For Punching Record Cards

Kodak introduces the 120 film format.

The Metro subway opens in Paris.

Christian Matthias Theodor Mommsen awarded the Nobel Prize in Literature for being "the greatest living master of the art of historical writing, with special reference to his monumental work, A history of Rome".

Barnum Brown of the American Museum of Natural History discovers Tyrannosaurus rex.

Arthur Korn devises practical telephotography technology (reduction of photographic images to signals that can be transmitted by wire to other locations).Wire-Photos are in wide use in Europe by 1910, and transmitted to other continents by 1922.

Richard Steiff designs the first teddy bears, named after Pres. Teddy Roosevelt.

Bjørnstjerne Martinus Bjørnson awarded the Nobel Prize in Literature "as a tribute to his noble, magnificent and versatile poetry, which has always been distinguished by both the freshness of its inspiration and the rare purity of its spirit".

Painting by Pablo Picasso: The Old Guitarist depicts an old, blind, haggard man with threadbare clothing weakly hunched over his guitar, playing in the streets of Barcelona, Spain. It is currently on display in the Art Institute of Chicago as part of the Helen Birch Bartlett Memorial Collection. At the time of The Old Guitarist's creation, Modernism, Impressionism, Post-Impressionism, and Symbolism had merged and created an overall movement called Expressionism which greatly influenced Picasso's style. Furthermore, El Greco, Picasso's poor standard of living, and the suicide of a dear friend influenced Picasso's style at the time which came to be known as his Blue Period. In the early 1960s, nearly forty percent of all college dorm rooms had a poster of this painting on the wall.

W. E. B. Du Bois' The Souls of Black Folk is published on April 27. Du Bois rejects the gradualism of Booker T. Washington and calls for agitation on behalf of African-American rights.

Orville and Wilbur Wright succeed with the first controlled flight in a heavier-than-air machine.

Cheddar Man, a human male fossil, is discovered at Gough's Cave in Cheddar Gorge, England. Sometimes referred to as the earliest Englishman, Cheddar Man turns out to be only about 15,000 years old. it appears that he died a violent death. A large crater-like lesion just above the skull's right orbit suggests that the man may have also been suffering from a bone infection at the time. It is Britain s oldest complete human skeleton.

L. de Vesly describes first- to third-century remains at Gallo Roman temples and wells near Rouen, France. Finds there include a cache of Neolithic axes and fossil sea urchins — evidence of association of axes and urchins over thousands of years.

Carl Neuberg first used the term BIOCHEMISTRY.

Physicist Ernest Rutherford lectures the British Association that radioactivity could power the sun and maintain its heat, meaning the sun and Earth could be much older than Lord Kelvin's estimate.

The first motor taxis appear in London

Frédéric Mistral awarded the Nobel Prize in Literature "in recognition of the fresh originality and true inspiration of his poetic production, which faithfully reflects the natural scenery and native spirit of his people, and, in addition, his significant work as a Provençal philologist".

José Echegaray y Eizaguirre awarded the Nobel Prize in Literature "in recognition of the numerous and brilliant compositions which, in an individual and original manner, have revived the great traditions of the Spanish drama".

Photograph by Edward Steichen: The Flatiron Building depicts the recently erected Flatiron Building in New York, taking inspiration from fellow photographers like Alfred Stieglitz, who had just photographed the building a year prior. The original negative was made in 1904 and spawned three platinum-gum exhibition prints in brown (1905), blue-green (1909), and yellow-green-black (1904–1909; uncertain).  Using different proportions of pigments in each gum process, Steichen was able to create these three unique platinum-gum prints. The photograph's most notable variant is the blue-green version, which, according to Penelope Niven, became "widely reproduced from 1909 onward" because of its intense color contrasts. The significance of the prints as a whole comes from how they showcase what Niven refers to as the "artistic potential" of photography. The work is one of the best-known photographs of Steichen's Pictorialist phase.

Painting by Henri Matisse: Luxe, Calme et Volupt is an oil painting by the French artist Henri Matisse. Both foundational in the oeuvre of Matisse and a pivotal work in the history of art, Luxe, Calme et Volupt is considered the starting point of Fauvism. Luxe, Calme et Volupt was painted by artist called Matisse in 1904, after a summer spent working in St. Tropez on the French Riviera alongside the neo-Impressionist painters Paul Signac and Henri-Edmond Cross. The painting is Matisse's most important work in which he used the Divisionist technique advocated by Signac.