Again, Olympia stood full in the way of the Achaean tribes as they pressed southwards from their first settlement at Dodona. In speaking of the Achaeans we are using the word provisionally for convenience’ sake to denote the pre-Dorian Greeks of the Peloponnese as opposed to the original inhabitants and the later Dorians. In the _Odyssey_ they have spread over the islands, over Pleuron by the sea and rocky Calydon, over Elis and Messenia. So close was the connexion between the islands and Elis, then the land of the Epeans, that the princes of Ithaca used its broad plains for breeding cattle and horses. The narrow straits offered no obstacle to this adventurous people, and for centuries before the passage of Oxylus, the one-eyed Aetolian from Naupactus, the Achaeans and others had been crossing over in larger or smaller companies till they had spread over the whole Peloponnese. Hence for the Achaeans in the Peloponnese Olympia stood in the same position as Dodona in northern Greece. The Dorians, indeed, seem to have failed in their attempt to follow in the same course; but legend connected with the return of the Heracleidae the invasion of their Aetolian allies under Oxylus, who dispossessed the Epean lords of Elis. The quarrel between these newcomers and the earlier settlers for the possession of Olympia lasted for centuries, but through all the changes of population, though many fresh cults were added by the invaders, the superstition with which all newcomers in those days regarded the gods and sanctuaries of the earlier inhabitants preserved the old cults inviolate, so that in the buildings and altars of Olympia, and the ritual of its festival, all the various strata of its history are plainly visible. Lastly, though remote from the struggles of later history, no place in the Peloponnese was more accessible to other parts. Besides the coast-route that connected it with Messenia and the gulf of Corinth, the valleys of the Alpheus and its tributaries afforded a natural means of communication with all parts of the interior, and it was to the athletic character of the inhabitants of the Peloponnese that the athletic fame of the festival in the first place was due. Without this native talent it could never have attracted competitions from northern Greece or from the colonies of the West, nor could it ever have acquired its peculiar sanctity but for the position it had held in the earlier migrations. It is unnecessary here to discuss the various myths which Greek imagination wove about the beginnings of Olympia, and the perplexing problems which they raise. Two propositions may be regarded as fairly established. In the first place, Olympia was a holy place before the Achaeans came to the Peloponnese. In the second place, the beginning of the games was earlier than the Dorian invasion, but later probably than the coming of the Achaeans.