Histories

But the Hellenic stock, it seems clear to me, has always had the same language since its beginning; yet being, when separated from the Pelasgians, few in number, they have grown from a small beginning to comprise a multitude of nations, chiefly because the Pelasgians and many other foreign peoples united themselves with them. Before that, I think, the Pelasgic stock nowhere increased much in number while it was of foreign speech.

Now of these two peoples, Croesus learned that the Attic was held in subjection and divided into factions by Pisistratus, son of Hippocrates, who at that time was sovereign over the Athenians. This Hippocrates was still a private man when a great marvel happened to him when he was at Olympia [21.6333,37.65] (Perseus)Olympia to see the games: when he had offered the sacrifice, the vessels, standing there full of meat and water, boiled without fire until they boiled over.