History of the Peloponnesian War

These were the barbarians in Sicily, settled as I have said. Of the Hellenes, the first to arrive were Chalcidians from Euboea with Thucles, their founder. They founded Naxos and built the altar to Apollo Archegetes, which now stands outside the town, and upon which the deputies for the games sacrifice before sailing from Sicily.

Syracuse was founded the year afterwards by Archias, one of the Heraclids from Corinth, who began by driving out the Sicels from the island upon which the inner city now stands, though it is no longer surrounded by water: in process of time the outer town also was taken within the walls and became populous.

Meanwhile Thucles and the Chalcidians set out from Naxos in the fifth year after the foundation of Syracuse, and drove out the Sicels by arms and founded Leontini and afterwards Catana; the Catanians themselves choosing Evarchus as their founder.