designed the Propylaea, a magnificent columned vestibule, fronting the broad flight of steps which led up to the western entrance of the Acropolis. But the most renowned of his works was the gigantic statue of the Olympian Zeus, wrought in gold and ivory, which was the chief glory of the temple at Olympia. Of this sublime creation, the highest expression of divinity achieved by the ancients, only the fame survives. These triumphs of art were not brought to completion until nearly the close of the period of forty-eight years which separates the Persian from the Peloponnesian War; and it is now necessary to glance backward, and touch briefly on the principal events which occurred after the formation of the Delian Confederacy. The war was carried on with energy against Persia, and hostilities continued at intervals for thirty years after the battle of Plataea. [Footnote: B.C. 479-449.] The chief leader in these enterprises was the heroic Cimon, leader of the conservative party at Athens, and the great rival of Pericles; and his most brilliant exploit was a crushing defeat inflicted on the Persian army and fleet at the mouth of the river Eurymedon in Pamphylia. But the victorious career of the Athenians received a severe check twelve years later in Egypt, where a large force of ships and men was totally destroyed by the Persian general Megabyzus. The war dragged on for five years longer, and peace was then concluded on terms highly advantageous to the Greeks. Shortly before this, Cimon, who had been the chief promoter of the war, died at Cyprus.