History of the Peloponnesian War

And the Athenians (for they notwithstanding [*]( i.e. notwithstanding the claim to it made by the Corinthians.) had the advantage rather [than their opponents]) on the departure of the Corinthians erected a trophy; but the Corinthians, being reproached by the elder men in the city, made preparations for about twelve days after, and went out and proceeded to set up a counter-trophy on their side also, as having been victorious. And the Athenians, having sallied out from Megara, cut to pieces those who were erecting the trophy, and engaged and defeated the rest.

The conquered forces commenced a retreat;

and a considerable division of them, being hard pressed and having missed their way, rushed into a field belonging to a private person, which had a deep trench enclosing it, and there was no road out. the Athenians, perceiving this, hemmed them in with heavy-armed in front, and having placed their light armed all round, stoned to death all who had gone in; and this was a severe blow for the Corinthians. The main body of their army returned home.

About this time the Athenians began also to build their long walls down to the sea, both that to Phalerus, and that to Piraeus.

And the Phocians having marched against the Dorians, the mother-country of the Lacedaemonians, [whose towns were] Boeum, and Citinium, and Erineum, and having taken one of these places, the Lacedaemonians under the command of Nicomedes, the son of Cleombrotus, in the stead of Pleistoanax, son of Pausanias, who was yet a minor, went to the aid of the Dorians with fifteen hundred heavy-armed of their own, and ten thousand of the allies; and having compelled the Phocians to restore the town on certain conditions, they proceeded to return back.