History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
In the mean time, on the arrival of a Corinthian ship and some Lacedaemonian envoys, the dominant party of the Corcyraeans attacked the commonalty, and defeated them in battle.