Although the Thirty Tyrants ruled in Athens but a short time, they condemned fifteen hundred men to death, and drove many good citizens into exile. During their brief period of authority they even found fault with Socrates, and would have liked to kill him, though he was the greatest philosopher the world has ever known.

As the rule of the Thirty Tyrants had been forced upon them by the victorious Spartans, the Athenians soon resolved to get rid of them. Among the good citizens whom these cruel rulers had driven away into exile, was Thrasybulus, who was a real patriot.