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.
Phocaean staters.[*]("The Phocaean stater was notorious for the badness of the gold (or rather electron); cf. Dem. xi. 36. It was worth about twenty-three silver drachmas. See Hultsch, Gr. und röm. Metrologie, 184.) After this they made an expedition against Antandros and took the city through treachery on the part of the inhabitants. It was, in fact, their plan to free the rest of the cities known as the Actaean cities,[*](ie. of the ἀκτή or promontory of the mainland north of Lesbos. These had been taken from Mytilene by paches (cf. 3.50.3). They are mentioned also C.I.A. i. 37.) which had hitherto been in the possession of the Athenians, though inhabited by Mytilenaeans, and above all Antandros. Having strengthened this place, where there was every facility for building ships—timber being available on the spot and Ida being near at hand —as well as for providing other equipments of war, they could easily, making it the base of their operations, not only ravage Lesbos, which was near, but also master the Aeolic towns on the mainland. Such were the plans upon which they were preparing to embark.
During the same summer the Athenians with sixty ships, two thousand hoplites, and a small detachment of cavalry, taking with them also some Milesians and others of their allies, made an expedition against Cythera. In command of the expedition were Nicias son of Niceratus, Nicostratus son of Dieitrephes, and Autocles son of Tolmaeus.
Now Cythera is an island adjacent to Laconia, lying off Malea; its inhabitants are Lacedaemonians of the class of the Perioeci, and an official called the Bailiff of Cythera used to cross over thither once a year from Sparta; they also used regularly to send over a garrison of hoplites and paid much attention to the place.