History of the Peloponnesian War

My excuse for relating these events, and for venturing on this digression, is that this passage of history has been omitted by all my predecessors, who have confined themselves either to Hellenic history before the Median war, or to the Median war itself. Hellanicus, it is true, did touch on these events in his Athenian history; but he is somewhat concise and not accurate in his dates. Besides, the history of these events contains an explanation of the growth of the Athenian empire.

First the Athenians besieged and captured Eion on the Strymon from the Medes, and made slaves of the inhabitants, being under the command of Cimon, son of Miltiades.

Next they enslaved Scyros the island in the Aegean, containing a Dolopian population, and colonized it themselves.