Plato
Born in Ægina of aristocratic parents about 427 b.c.; died in Athens in 347; originally called Aristocles and surnamed Plato because of his broad shoulders; a disciple of Socrates and a teacher of Aristotle; was the founder of the Academic school; in his youth a successful gymnast, soldier, and poet; traveled in Egypt, Sicily, and Magna Græcia; arrested in Syracuse by Dionysius, the tyrant, and sold as a slave in Ægina, where he was released and returned to Athens; revisited Syracuse in 367 and 361; lived afterward in Athens until his death, which occurred at a marriage feast.56