its stead. The Thirty Tyrants, however, who administered this government, were, after eight months' infamous rule, driven from the city, and the old democratic constitution, somewhat modified, was re-established (403 B.C.) .
It was during this period that Socrates, the greatest moralist and teacher of antiquity that Europe had produced, was condemned to death, because his teachings were thought contrary to the religion of the Athenians. To this era also belongs the well-known expedition of the Ten Thousand Greeks.
Expedition of the Ten Thousand (401–400 B.C.).—Cyrus, satrap of the Persian province of Asia Minor, thinking that his brother Artaxerxes held the throne unjustly, planned to wrest it from him. For carrying out this purpose, he raised an army composed of a hundred thousand Barbarians and about eleven thousand Greek mercenaries.
With this force Cyrus set out from Sardis, in the spring of 401 B.C. He marched without opposition across Asia Minor and Mesopotamia to Babylonia, into the very heart of the Persian empire. Here, at Cunaxa, he was confronted by Artaxerxes with a force of more than half a million of men. The Barbarian allies of Cyrus were scattered at the first onset of the enemy; but the Greeks stood like a rampart of rock. Cyrus, however, was slain; and the other Greek generals, having been persuaded to enter into a council, were treacherously murdered by the Persians.
The Greeks, in a hurried night meeting, chose new generals to lead them back to their homes. One of these was Xenophon, the popular historian of the expedition. Now commenced one of the most memorable retreats in all history. After a most harassing march over the hot plains of the Tigris and the icy passes of Armenia, the survivors reached the Black Sea, the abode of sister Greek colonies.
Theban Supremacy (371–362 B.C.).—Throughout all the period of her supremacy, Sparta dealt selfishly and tyrannically with the other Grecian states. But at last the fiery resentment kindled by her oppressive measures inspired such a determined revolt against
