History of the Peloponnesian War

For it was about this time that the democracy was put down at Athens. For after that Pisander and his fellow-ambassadors that had been with Tissaphernes were come to Samos, they both assured their affairs yet better in the army and also provoked the principal men of the Samians to attempt with them the erecting of the oligarchy, though there were then an insurrection amongst them against the oligarchy.

And withal the Athenians at Samos, in a conference amongst themselves, deliberated how, since Alcibiades would not, to let him alone; for indeed they thought him no fit man to come into an oligarchy; but for themselves, seeing they were already engaged in the danger, to take care both to keep the business from a relapse and withal to sustain the war and to contribute money and whatsoever else was needful with alacrity out of their private estates, and no more to toil for other than themselves.

Having thus advised, they sent Pisander with half the ambassadors presently home, to follow the business there, with command to set up the oligarchy in all the cities they were to touch at by the way; the other half they sent about, some to one part [of the state] and some to another.

And they sent away Diotrephes to his charge, who was now about Chios, chosen to go governor of the cities upon Thrace. He, when he came to Thasos, deposed the people.

And within two months at most after he was gone, the Thasians fortified their city, as needing no longer an aristocracy with the Athenians but expecting liberty every day by the help of the Lacedaemonians. For there were also certain of them with the Peloponnesians driven out by the Athenians;