History of the Peloponnesian War

Some time after it happened that the Thasians revolted from them, having quarrelled about the marts on the opposite coast of Thrace and the mine of which they were in possession. And the Athenians, having sailed with their fleet to Thasos, gained the victory in a sea-fight, and made a descent on their land.

About the same time they sent ten thousand settlers of their own citizens and the allies to the Strymon, to colonize what was then called the Nine Ways, but new Amphipolis; and they made themselves masters of the Nine Ways, which was held by the Edones; but having advanced into the interior of Thrace, were cut off at Drabescus, a town of the Edones, by the united Thracians, by whom the settlement of the town of Nine Ways was regarded with hostility.