History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
The Lacedaemonians, nevertheless, gave judgment, to the effect that the Lepreates were independent and the Eleans the aggressors, and as the latter did not abide by the arbitration, sent a garrison of hoplites to Lepreum.
But the Eleans, considering that the Lacedaemonians had taken under their protection a city of theirs that was in revolt, cited the agreement in which it was stipulated that whatever places any of the confederates had when they entered the war with Athens they should retain when they came out of it;
and on the ground that they had not received fair treatment went over to the Argives, their envoys making the alliance as they had been instructed to do. Immediately after them the Corinthians also and the Chalcidians in Thrace became allies of the Argives. But the Boeotians and Megarians, though holding the same views, kept quiet, awaiting events and thinking the Argive democracy not so advantageous for them, with their oligarchical form of government, as the political constitution of the Lacedaemonians.
About the same time during this summer, the Athenians reduced the Scionaeans by siege, slew the adult males,[*](In accordance with the decree moved by Cleon two years before (4.122.6). At the conclusion of peace they had been left at the mercy of the Athenians (5.18.8).) made slaves of the women and children, and gave the land to the Plataeans to occupy; and they brought back the Delians to Delos,[*](cf. ch. i.) taking to heart their mishaps in the battles[*](At Delium and Amphipolis.) and obeying an oracle of the god at Delphi.