History of the Peloponnesian War

The Megareans also came over into alliance with the Athenians, having revolted from the Lacedaemonians, because the Corinthians were pressing them with war about the boundaries of their territory. And the Athenians received possession of Megara and Pegae, and built for the Messenians the long walls from the city to Nisaea, and themselves manned them. And it was chiefly from this that their excessive hatred of the Athenians first began to be felt by the Corinthians.

Now Inarus, the son of Psammetichus, the Libyan king of the Libyans bordering on Egypt, having his headquarters at Maraea, the city above Pharos, caused the greater part of Egypt to revolt from king Artaxerxes, and being himself made ruler of it, invited the Athenians to his aid.

They, happening to be engaged in an expedition against Cyprus with two hundred ships of their own and of the allies, left Cyprus and came to him; and having sailed up from the sea into the Nile, and being masters of the river and two thirds of Memphis, proceeded to hostilities against the third division, which is called the White-castle, and in which were those of the Persians and Medes who had fled there for refuge, and those of the Egyptians who had not joined in the revolt.

The Athenians, having with their fleet made a descent on Haliae, had a battle with the Corinthians and Epidaurians, and the Corinthians gained the victory. Afterwards this Athenians had a sea-fight with the fleet of the Peloponnesians off Cecryphalea, and the Athenians gained the victory.