History of the Peloponnesian War

They made an expedition against Cyprus and subdued most of the island, and afterwards against Byzantium, which was in the hands of the Medes, and compelled it to surrender. This event took place while the Spartans were still supreme.

But the violence of Pausanias had already begun to be disagreeable to the Hellenes, particularly to the Ionians and the newly liberated populations. These resorted to the Athenians and requested them as their kinsmen to become their leaders, and to stop any attempt at violence on the part of Pausanias.