Aristotle was born in 384 BC in Stagira, the modern Starro on the northern cost of Aegean. (work cited book 1, pg.13)The new generation wanted to forget the past and strive for a better future. His father Nicomchus, was a doctor. Aristotle learned early first aid techniques. This training could have contributed to Aristotle's special interest in biology. When Aristotle was ten his father died. His guardian then became Proxenus, his uncle. (w.c.b. 1, pg.14)

In 367, when Aristotle was 17, Proxenus sent him to the Academy of Plato in Athens to study. (w.c.b. 2, pg. 18&19) Plato became almost a father figure to Aristotle

In 1506 Leonardo returned to Milan, where he was named court painter to King Louis XII of France. Leonardo lived in Rome under the patronage of Pope Leo X, from 1514 until 1516. At this time he came up with many scientific theories. His writings are not easily read though, because he wrote backwards. In 1516 Leonardo traveled to France. Here he entered the service of king Frances I. He went to Chateau de Clox, near Amboise. He spent his last few years here until he died at the age of 67 in 1519. He influenced the Italian art more than a century after his death. He also had an impact on modern science developments, along with anatomy, optics, and hydraulics. Many of the other subjects and sketches that he studied and made have now been discovered. He was truly ahead of his time.

About 1482 Leonardo entered the Service of the Duke of Milan, Ludovico Sforza, as principal engineer and architect. At this time he also assisted the mathematician, Luca Pacioli. Leonardo wrote many texts, compiled as "Treatise on Painting". During this period the most important of his painting was "The Virgin on the rocks". (w.c.b. 3, pg.2) From 1495 until 1497 Leonardo labored on "The Last Supper". At this time he also did many other paintings, drawings, (which were lost) theatre design, and architectural drawings (w.c.b. 1) In 1500 he returned to Florence, where he later entered the service of Cesare Borgia, Duke of Romagna. During this period Leonardo painted many portraits, the only surviving though was "the Mona Lisa". (w.c.b. 3, pg.3) Leonardo also developed two painting techniques, sfumato and chiaroscuro.

About the year 1466 Leonardo was apprenticed to a studio boy named Andrea del Verrocchio. Andrea was the leading Florentine painter and sculptor of his day. Leonardo even modeled for one of his sculptures "David". (w.c.b. 2, pg.36) On April 8,1476 he was accused of having sexual relations with a seventeen year old youth name Jacopo Saltarelli. During this time the accusations suffered him great humiliation. His step mother also died as a result of the stress. Some people think Leonardo may have been homo-sexual, becaues of his all male models and no mention of any girlfriend. (w.c.b. 2, pg.39) In 1478 Leonardo became an independent master. His first large painting "The Adoration of Magi" was left unfinished. In 1481 this painting was ordered for a monastery.

In the spring of 322 BC Aristotle moved to Chalkis, on the island

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