History of the Peloponnesian War
Thucydides
Thucydides. The English works of Thomas Hobbes of Malmesbury. Hobbes, Thomas. translator. London: John Bohn, 1843.
And they consented before the people that the suspension should continue for a year, beginning that same day, being the fourteenth of the month Elaphebolion,
in which time the ambassadors and heralds, going from one side to the other, should treat about a final end of the wars; and that the commanders of the army
and the presidents of the city calling an assembly, the Athenians should hold a council, touching the manner of embassage for ending of the war first; and the ambassadors there present should now immediately swear this truce for a year.