Feeling against Sparta in Peloponnese—League of the Mantineans, Eleans, Argives, and Athenians—Battle of Mantinea and breaking up of the League.
After the treaty and the alliance between the Lacedaemonians and Athenians, concluded after the ten years’ war, in the ephorate of Pleistolas at Lacedaemon, and the archonship of Alcaeus at Athens, the states which had accepted them were at peace; but the Corinthians and some of the cities in Peloponnese trying to disturb the settlement, a fresh agitation was instantly commenced by the allies against Lacedaemon. Further, the Lacedaemonians, as time went on, became suspected by the Athenians through their not performing some of the provisions in the treaty; and though for six years and ten months they abstained from invasion of each other’s territory, yet abroad an unstable armistice did not prevent either party doing the other the most effectual injury, until they were finally obliged to break the treaty made after the ten years’ war and to have recourse to open hostilities.
The history of this period has been also written by the same Thucydides, an Athenian, in the chronological order of events by summers and winters, to the time when the Lacedaemonians and their allies put an end to the Athenian empire, and took the Long Walls and Piraeus. The war had then lasted for twenty-seven years in all. Only a mistaken judgment can object to including the interval of treaty in the war. Looked at by the light of facts it cannot, it will be found, be rationally considered a state of peace, where neither party either gave or got back all that they had agreed, apart from the violations of it which occurred on both sides in the Mantinean and Epidaurian wars and other instances, and the fact that the allies in the direction of Thrace were in as open hostility as ever, while the Boeotians had only a truce renewed every ten days. So that the