History of the Peloponnesian War

Receiving this answer from the Athenians, the Corinthians commenced preparations for their voyage home, and set up a trophy in Sybota, on the continent; while the Corcyraeans took up the wrecks and dead that had been carried out to them by the current, and by a wind which rose in the night and scattered them in all directions, and set up their trophy in Sybota, on the island, as victors.

The reasons each side had for claiming the victory were these. The Corinthians had been victorious in the sea-fight until night; and having thus been enabled to carry off most wrecks and dead, they were in possession of no fewer than a thousand prisoners of war, and had sunk close upon seventy vessels. The Corcyraeans had destroyed about thirty ships, and after the arrival of the Athenians had taken up the wrecks and dead on their side; they had besides seen the Corinthians retire before them, backing water on sight of the Athenian vessels, and upon the arrival of the Athenians refuse to sail out against them from Sybota.

Thus both sides claimed the victory.

The Corinthians on the voyage home took Anactorium, which stands at the mouth of the Ambracian gulf. The place was taken by treachery, being common ground to the Corcyraeans and Corinthians. After establishing Corinthian settlers there, they retired home. Eight hundred of the Corcyraeans were slaves; these they sold; two hundred and fifty they retained in captivity, and treated with great attention, in the hope that they might bring over their country to Corinth on their return; most of them being, as it happened, men of very high position in Corcyra.

In this way Corcyra maintained her political existence in the war with Corinth, and the Athenian vessels left the island. This was the first cause of the war that Corinth had against the Athenians, viz. that they had fought against them with the Corcyraeans in time of treaty.

Almost immediately after this, fresh differences arose between the Athenians and Peloponnesians, and contributed their share to the war.

Corinth was forming schemes for retaliation, and Athens suspected her hostility. The Potidaeans, who inhabit the isthmus of Pallene, being a Corinthian colony, but tributary allies of Athens, were ordered to raze the wall looking towards Pallene, to give hostages, to dismiss the Corinthian magistrates, and in future not to receive the persons sent from Corinth annually to succeed them. It was feared that they might be persuaded by Perdiccas and the Corinthians to revolt, and might draw the rest of the allies in the direction of Thrace to revolt with them.