History of the Peloponnesian War

Such was the treaty and alliance that was concluded; and all the places which either side had acquired from the other in war they restored, or if there was any other ground of difference between them, they came to an agreement about it. Acting now in concert in their affairs, they voted not to receive herald or embassy from the Athenians, unless they evacuated their forts and withdrew from the Peloponnesus;

also not to make peace or carry on war with anyone except together. And not only did they prosecute other matters with energy, but both of them sent envoys to the places in Thrace and to Perdiccas. And they persuaded Perdiccas to swear alliance with them. He, however, did not desert the Athenians at once, but was thinking of it, because he saw the Argives had done so; for he was himself of Argive descent.[*](cf. 2.99.3.)

With the Chalcidians, too, they renewed their ancient oaths, and swore new ones. The Argives also sent envoys to the Athenians bidding them evacuate the fortress at Epidaurus;[*](cf. 5.75.6.) and these, seeing that their contingent was small in comparison with the rest, sent Demosthenes to bring away their men. On his arrival he made a pretext of some gymnastic contest outside the fort, and when the rest of the garrison had gone out closed the gates behind them. Afterwards the Athenians renewed the treaty with the Epidaurians and of their own accord gave up the fortress.