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.
But when they would not submit, even after their land had been ravaged, the Athenians left Melos and sailed to Oropus in the territory of Graïa, and the hoplites, landing there at nightfall, proceeded at once by land to Tanagra in Boeotia.
There they were met by the Athenians from the city in full force, who, under the command of Hipponicus son of Callias and Eurymedon son of Thucles, came overland upon a concerted signal and joined them. And after they had made camp they spent that day in ravaging the territory of Tanagra, and also passed the night there.