Icaria, during the 6th century BC, became part of the sea empire of Polycrates, and during the 5th century BC, the Icarian cities of Oenoe and Thermae were members of the Athenian-dominated Delian League. During the 2nd century, the island was colonized by Samos. At this time, the "Tauropolion", the temple of Artemis was built at Oenoe. Coins of the city represented Artemis and a bull. There was another, smaller "temenos" that was sacred to Artemis Tauropolos, at Nas, on the northwest coast of the island.