Eion

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Eion (Ancient Greek: Ἠϊών, Ēiṓn), one of two ancient cities named Chrysopolis, was an ancient Greek Eretrian colony in Thracian Macedonia specifically in the region of Edonis. It sat at the mouth of the Strymon River which flows into the Aegean from the interior of Thrace. It is referred to in Thucydides' History of the Peloponnesian War as a place of considerable strategic importance to the Athenians during the Peloponnesian War. Athenians for the first time attempted to capture Eion in 497 BC during the Ionian Revolt, which was unsuccessful as the revolt ended with Persians re-establishing control over the Thrace, including Eion, and a Persian fortress meant for permanent stay was built there, probably in 492 BC. Eion functioned as one of the main Achaemenid cities in Thrace where food was stored for the Persian king Xerxes I and his great armies. Herodotus and Diodorus speak of Persian garrisons, of which the one at Eion was amongst them, which meant that its senior commander was apparently ethnically Persian. Xerxes had recalled most of the Persian troops from the area in the winter of 480/479 BC. It was then captured by the Delian League in 476 BC under the leadership of the Athenian...

This article incorporates text from a publication now in the public domain : Smith, William, ed. (1854–1857). "Eion". Dictionary of Greek and Roman Geography. London: John Murray.