History of the Peloponnesian War

Thucydides

Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.

And when the Athenians saw that the enemy had withdrawn, they also returned home with their hundred ships.

At the time when these ships were at sea about the largest number the Athenians ever had at once were on active service, though there were as many or even more at the beginning of the war.