History of the Peloponnesian War

Those in Ithome, in the tenth year, when they could hold out no longer, surrendered to the Lacedaemonians on condition of their going out of the Peloponnese under truce, and never setting foot on it again;

and that if any one were caught doing so, he should be the slave of him who caught him. The Lacedaemonians had also before this a Pythian response made to them,

to let go the suppliant of Jupiter at Ithome.

So they went out, themselves, and their children, and their wives; and the Athenians received them, on the strength of the hatred they now felt for the Lacedaemonians, and settled them at Naupactus, which they had lately taken from the Locri Ozolae who held it.

The Megareans also came over into alliance with the Athenians, having revolted from the Lacedaemonians, because the Corinthians were pressing them with war about the boundaries of their territory. And the Athenians received possession of Megara and Pegae, and built for the Messenians the long walls from the city to Nisaea, and themselves manned them. And it was chiefly from this that their excessive hatred of the Athenians first began to be felt by the Corinthians.