Trial of Socrates and the schools of Plato and Aristotle

In 399 BC a jury of 501 Athenian citizens found the philosopher Socrates guilty of impiety and corrupting the young, and he was put to death with hemlock. His pupil Plato wrote down his way of questioning and founded the Academy outside the city walls, and Plato's pupil Aristotle later taught at the Lyceum. Their schools set the questions of Western philosophy and science for two thousand years.