The abundant grey pottery ware found on the island and the worship of Cybele, the great mother-goddess of Anatolia, suggest the cultural continuity of the population from Neolithic times. When the Persian king Cyrus defeated Croesus (546 BC) the Ionic Greek cities of Anatolia and the adjacent islands became Persian subjects and remained such until the Persians were defeated by the Greeks at the Battle of Salamis (480 BC). The island was governed by an oligarchy in archaic times, followed by quasi-democracy in classical times. For a short period it was a member of the Athenian confederacy, its apostasy from which is recounted by Thucydides in the "Mytilenian Debate", in Book III of his "History of the Peloponnesian War". In Hellenistic times, the island belonged to various Successor kingdoms until 79 BC when it passed into Roman hands.