Athens, which had been great before, now grew even greater when her tyrants had been removed. The two principal holders of power were Cleisthenes an Alcmaeonid, who was reputed to have bribed the Pythian priestess, and Isagoras son of Tisandrus, a man of a notable house but his lineage I cannot say. His kinsfolk, at any rate, sacrifice to Zeus of Caria. These men with their factions fell to contending for power, Cleisthenes was getting the worst of it in this dispute and took the commons into his party. Presently he divided the Athenians into ten tribes instead of four as formerly. He called none after the names of the sons of Ion—Geleon, Aegicores, Argades, and Hoples—but invented for them names taken from other heroes, all native to the country except Aias. Him he added despite the fact that he was a stranger because he was a neighbor and an ally.