History of the Peloponnesian War
Thucydides
Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.
and many years had to elapse before Hellas could attain to a durable tranquillity undisturbed by removals, and could begin to send out colonies, as Athens did to Ionia and most of the islands, and the Peloponnesians to most of Italy and Sicily and some places in the rest of Hellas. All these places were founded subsequently to the war with Troy.
But as the power of Hellas grew, and the acquisition of wealth became more an object, the revenues of the states increasing, tyrannies were by their means established almost everywhere,— the old form of government being hereditary monarchy with definite prerogatives,— and Hellas began to fit out fleets and apply herself more closely to the sea.
It is said that the Corinthians were the first to approach the modern style of naval architecture, and that Corinth was the first place in Hellas where galleys were built;