RETURN OF THE HERACLI'DÆ About twenty years after the Thessalian conquest, the Dorians, who had frequently changed their homes, and had finally settled in a mountainous region on the south of Thessaly, commenced a migration to the Peloponnesus, accompanied by portions of other tribes, and led, as was asserted, by descendants of Hercules, who had been deprived of their dominions in the latter country, and who had hitherto made several unsuccessful attempts to recover them. This important event in Grecian history is therefore called the "Return of the Heraclidæ." The Dorians could muster about twenty thousand fighting men; and although they were greatly inferior in numbers to the inhabitants of the country they invaded, the whole of Peloponnesus, except a few districts, was subdued and apportioned among the conquerors. Of the Heraclidæ, Tem'enus received Argos, the sons of Aristode'mus obtained Sparta, and Cresphon'tes was given Messe'nia. Some of the unconquered tribes of the southern part of the peninsula seized upon the province of Acha'ia, and expelled its Ionian inhabitants. The latter sought a retreat on the western coast of Asia Minor, south of the Æolian cities, and the settlements thus formed received the name of Ionia. At a still later period, bands of the Dorians, not content with their conquest of the Peloponnesus, thronged to Asia Minor, where they peopled several cities south of Ionia; so that the Ægean Sea was finally circled by Grecian settlements, and its islands covered with them. The Dorians did not become undisputed masters of the Peloponnesus until they had conquered Corinth in the next generation. The capture of Corinth was attended by another expedition which drew the Dorians north of the Isthmus. They invaded Attica, and encamped before the walls of Athens. Before proceeding to attack the city they consulted the oracle at Delphi--the most remarkable oracle of the ancient world, of which the poet LU'CAN thus writes: The listening god, still ready with replies, To none his aid or oracle denies; Yet wise, and righteous ever, scorns to hear The fool's fond wishes, or the guilty's prayer; Though vainly in repeated vows they trust, None e'er find grace before him but the just. Oft to a banished, wandering, houseless race The sacred dictates have assigned a place: Oft from the strong he saves the weak in war, And heals the barren land, and pestilential air.