Antiquity
The story that Paros of Parrhasia colonized the island with Arcadians is an etymological fiction of the type that abounds in Greek legend. Ancient names of the island are said to have been Plateia (or Pactia), Demetrias, Strongyli (meaning round, due to the round shape of the island), Hyria, Hyleessa, Minoa and Cabarnis.
The island later received from Athens a colony of Ionians under whom it attained a high degree of prosperity. It sent out colonies to Thasos and Parium on the Hellespont. In the former colony, which was planted in the 15th or 18th Olympiad, the poet Archilochus, a native of Paros, is said to have taken part. As late as 385 BC the Parians, in conjunction with Dionysius of Syracuse, founded a colony on the Illyrian island of Pharos (Hvar).
Shortly before the Persian War, Paros seems to have been a dependency of Naxos. In the first Greco-Persian War (490 BC), Paros sided with the Persians and sent a trireme to Marathon to support them. In retaliation, the capital was besieged by an Athenian fleet under Miltiades, who demanded a fine of 100 talents. But the town offered a vigorous resistance, and the Athenians were obliged to sail away after a siege of 26 days, during which they had wasted the island. It was at a temple of Demeter Thesmophoros in Paros that Miltiades received the wound from which he died. By means of an inscription, Ross was able to identify the site of the temple; it lies, as Herodotus suggests, on a low hill beyond the boundary of the town.
Paros also sided with shahanshah Xerxes I of Persia against Greece in the second Greco-Persian War (480 - 479 BC), but, after the battle of Artemisium, the Parian contingent remained inactive at Kythnos as they watched the progression of events. For their support of the Persians, the islanders were later punished by the Athenian war leader Themistocles, who exacted a heavy fine.
Under the Delian League, the Athenian-dominated naval confederacy
