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.
After the withdrawal of the Argives from the alliance, the Mantineans also, although at first opposed to this course, afterwards, finding themselves unable to hold out without the Argives, likewise made an agreement with the Lacedaemonians and relinquished their sovereignty over the cities.[*](ie. over the Parrhasians and others in Arcadia; cf. ch. xxix. 1; xxxiii. 1; xii. 1.)
And now the Lacedaemonians and Argives, each a thousand strong, made a joint expedition, the Lacedaemonians first going alone and setting up a more oligarchical form of government in Sicyon, afterwards both together putting down the democracy at Argos and establishing an oligarchy favourable to the Lacedaemonians. These things occurred when the winter was closing and spring was now near at hand; and so ended the fourteenth year of the war.
The next summer the people of Dium[*](cf. 5.35.1.)[*](417 B.C.) on Mount Athos revolted from the Athenians and went over to the Chalcidians; and the Lacedaemonians arranged matters in Achaea, which had before this not been favourable to
their interests. And now the popular party at Argos, gradually consolidating its strength and recovering boldness, waited for the celebration of the Gymnopaediae[*](A festival in which boys and men danced naked. While it lasted the Lacedaemonians (as at the Carneia, cf. chs. liv. and lxxv.) abstained from war.) by the Lacedaemonians and attacked the oligarchs. A battle occurred in the city and the popular party got the better of it, slaying some of their enemies and
expelling others. The Lacedaemonians, although their friends kept sending for them, did not come for a long time; but at last they put off the Gymnopaediae and went to their aid. But hearing at Tegea that the oligarchs had been conquered, they refused to go further, in spite of the entreaties of the oligarchs who had escaped, and returning home proceeded with the celebration of
the Gymnopaediae. Later, when envoys had come from the Argives in the city and messengers from those who had been driven out, and their allies were present, and much had been said on either side, they decided that those in the city[*](The popular party.) were in the wrong and determined to make an expedition
to Argos; but delays and postponements occurred. Meanwhile, the democracy at Argos, fearing the Lacedaemonians and again courting the alliance of the Athenians, because they believed that it would be of the greatest benefit to themselves, proceeded to build long walls down to the sea, in order that, should they be cut off from the land, they might with the help of the Athenians have the advantage of importing supplies
by sea. Some of the cities in the Peloponnesus, too, were privy to their fortifying. The whole Argive people, men, women, and slaves, set to work upon the walls; and from Athens also there came to them carpenters and stone masons. So the summer ended.