Religious scandal and the coup of the oligarchs
During and soon after the war with Sparta, several events revealed how much damage could be done to Athenian democracy by individuals who did not respect the religious customs of the community, who had no allegiance to the institutions of democracy, or who admired their city’s adversary. One night in 415, shortly before a major naval expedition to Sicily was to set sail, many statues of the god Hermes (who protected travelers) were mutilated, presumably by those who wished to prevent the expedition from proceeding. While the matter was being investigated, several men, including one of Socrates’ greatest admirers, Alcibiades—who had sponsored and helped to lead the Sicilian expedition—were accused of mocking a religious ceremony and revealing its sacred secrets to outsiders. Some of them were tried and executed. Alcibiades, who had been charged with involvement in other religious scandals before, was called back from Sicily to face trial. The power of his enemies and the suspicion of him was so great, however, that he decided to escape to Sparta rather than return to Athens to face the likelihood of a death sentence. Athens condemned him and his associates to death in absentia, and he proceeded to offer counsel and leadership to Sparta in its fight against Athens. In 407 he returned to Athens and was cleared of the charges against him, though he never fully regained the trust either of the democrats or their opponents. Alcibiades was only one of many followers of Socrates mentioned in Plato’s dialogues who were involved in the religious scandals of 415.
In 411 a group of 400 opponents of Athenian democracy staged a coup and tried to install an oligarchy, but they were overthrown in the same year and democracy was restored. Some of them, who were associates of Socrates, went into exile after their revolution failed. In 404, soon after the Athenians’ defeat, Sparta installed a group of 30 men (many years later dubbed the Thirty Tyrants) in Athens to establish a far less democratic regime there. The leader of the most extreme wing of this group, Critias, was part of the Socratic circle; so, too, was Charmides, another of the 30. The democrats, many of whom had left Athens when the 30 came to power, defeated them in battle, and democracy was restored the following year. (In Plato’s Apology, Socrates refers to the reign of the 30 and their unsuccessful attempt to implicate him in their crimes.)