History of the Peloponnesian War

But the Athenians, with the whole power of their city and a thousand Argives and other confederates as they could be gotten together, in all fourteen thousand men, went out to meet them;

for there was suspicion that they came thither to depose the democracy.

There also came to the Athenians certain horsemen out of Thessaly, which in the battle turned to the Lacedaemonians.

They fought at Tanagra of Boeotia, and the Lacedaemonians had the victory; but the slaughter was great on both sides.