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.
The following persons took oaths and ratified the treaty: on behalf of the Lacedaemonians, Pleistoanax, Agis, Pleistolas, Damagetus, Chionis, Metagenes, Acanthus, Daïthus, Ischagoras, Philocharidas, Zeuxidas, Antippus, Tellis, Alcinadas, Empedias, Menas, Laphilus; on behalf of the Athenians, Lampon, Isthmionicus, Nicias, Laches, Euthydemus, Procles, Pythodorus, Hagnon, Myrtilus, Thrasycles, Theagenes, Aristocrates, Iolcius, Timocrates, Leon, Lamachus, Demosthenes.”
This treaty was concluded at the end of the winter and the opening of spring immediately after the City Dionysia.[*](The City or Greater Dionysia began before the vernal equinox and lasted several days.) Just ten years and a few days had passed since the first invasion of Attica and the beginning of this war.
But one must reckon according to the natural divisions of the year, not according to the catalogue of the names of officials in each place, be they archons or others who in consequence of some office mark the dates for past events, in the belief that this method is more to be trusted; for it is really inexact, since an event may have occurred in the beginning of their term of office, or in the middle, or at any other point as it happened.
But reckoning by summers and winters, as has been done in this history—inasmuch as each of these divisions is to be reckoned as half a year—it will be found that there have been ten summers and as many winters in this first war.[*](Commonly referred to by the Attic orators as the Archidamian War. See Introduction, vol. i., p. xiii.)
Now since the lot fell to the Lacedaemonians to make restoration first of the positions they held, they straightway set at liberty the prisoners of war that were in their hands, and sending Ischagoras, Menas, and Philocharidas as envoys to Thrace ordered Clearidas to give up Amphipolis to the Athenians, and the rest of the allies to accept the treaty, as it had been prescribed for each.
But the latter were unwilling to do so, as they thought that the terms were unfavourable to them; and Clearidas, to oblige the Chalcidians, did not give up Amphipolis, saying that he was unable to give it up against their will.