History of the Peloponnesian War

But it was chiefly in the war that arose a long time ago between the Chalcidians and the Eretrians,[*](The war for the Lelantine Plain (cf. Hdt. 5.99; Strabo, x. i. 11); usually placed in the seventh century, but by Curtius in the eighth (see Hermes, x. pp. 220 if.).) that all the rest of Hellas took sides in alliance with the one side or the other.

But different Hellenic peoples in different localities met with obstacles to their continuous growth; for example, after the Ionians had attained great prosperity, Cyrus and the Persian empire, after subduing Croesus[*](546 B.C.) and all the territory between the river Halys and the sea, made war against them and enslaved the cities on the mainland, and later on Darius, strong in the possession of the Phoenician fleet, enslaved the islands also.[*](493 B.C.)