History of the Peloponnesian War

Just about a hundred and eight years after their own settlement, the Geloans settled Acragas, [or Agrigentum,] naming the city from the river Acragas: they made Aristonous and Pystilus the leaders of their colony, and gave it the institutions of the Geloans.

Zancle, again, was originally founded from Cuma, the Chalcidian city in the country of the Opici, by some freebooters who went there; but afterwards a great number went from Chalcis and the rest of Euboea, and shared with them in the occupation of the land; its founders being Perieres and Crataemenes, one from Cuma, the other from Chalcis. As regards its name, it was at first called Zancle by the Sicels, because the site resembles a reaping-hook in figure, and the reaping-hook is called by the Sicels zanclon. Afterwards, these settlers were expelled by some Samians and other Ionians, who landed in Sicily while flying from the Medes;

and again, Anaxilas, tyrant of Rhegium, having not long after expelled the Samians, and colonized their country with a mixed population, changed its name to Messana, after his own original country.