Skiathos has been dwelled since Prehistoric Times, probably by Pelasgians and later on by Cretans. After that, the town of Skiathos was an ally of Athens both in the First and the Second Athenian Empire.
Not much information is known about Skiathos during the Byzantine Era but it is a fact that the island has suffered a lot by pirate raids. Piracy went on during Venetian Domination as well as the Ottoman Empire.
Skiathos has also contributed importantly with her naval force in the Greek War of Independence 1821 (Greek Revolution).