History of the Peloponnesian War

In this embassy joined also the Dorians from the mother country of the Lacedaemonians, with the same request, as they themselves also suffered from the same enemy.

After hearing them, the Lacedaemonians determined to send out the colony, wishing to assist the Trachinians and Dorians, and also because they thought that the proposed town would lie conveniently for the purposes of the war against the Athenians. A fleet might be got ready there against Euboea, with the advantage of a short passage to the island; and the town would also be useful as a station on the road to Thrace. In short, everything made the Lacedaemonians eager to found the place.