History of the Peloponnesian War

As others by other means were kept back from growing great, so also the Ionians by this: that the Persian affairs prospering, Cyrus and the Persian kingdom after the defeat of Croesus made war upon all that lieth from the river Halys to the seaside and so subdued all the cities which they possessed in the continent; and Darius afterward, when he had overcome the Phoenician fleet, did the like unto them in the islands.