History of the Peloponnesian War

Meanwhile the rebels in Ithome, unable to prolong further a ten years' resistance, surrendered to Lacedaemon; the conditions being that they should depart from Peloponnese under safe conduct, and should never set foot in it again:

any one who might hereafter be found there was to be the slave of his captor. It must be known that the Lacedaemonians had an old oracle from Delphi, to the effect that they should let go the suppliant of Zeus at Ithome.

So they went forth with their children and their wives, and being received by Athens from the hatred that she now felt for the Lacedaemonians, were located at Naupactus, which she had lately taken from the Ozolian Locrians.

The Athenians received another addition to their confederacy in the Megarians; who left the Lacedaemonian alliance, annoyed by a war about boundaries forced on them by Corinth. The Athenians occupied Megara and Pegae, and built the Megarians their long walls from the city to Nisaea, in which they placed an Athenian garrison. This was the principal cause of the Corinthians conceiving such a deadly hatred against Athens.

Meanwhile Inaros, son of Psammetichus, a Libyan king of the Libyans on the Egyptian border, having his head-quarters at Marea, the town above Pharos, caused a revolt of almost the whole of Egypt from King Artaxerxes, and placing himself at its head, invited the Athenians to his assistance.

Abandoning a Cyprian expedition upon which they happened to be engaged with two hundred ships of their own and their allies, they arrived in Egypt and sailed from the sea into the Nile, and making themselves masters of the river and two-thirds of Memphis, addressed themselves to the attack of the remaining third, which is called White Castle. Within it were Persians and Medes who had taken refuge there, and Egyptians who had not joined the rebellion.