History of the Peloponnesian War

For one hundred ships were guarding Attica, Euboea and Salamis, and another hundred were cruising off the Peloponnesus, besides those at Potidaea and in other places, so that the number in service at the same time in a single summer was all told two hundred and fifty. It was this effort, together with Potidaea, that chiefly exhausted their resources of money.

For in the siege of Potidaea the hoplite received a wage of two drachmas a day, one for himself and one for his attendant;