Ios is an island that belongs to the Cyclades complex of islands. It is surrounded by Santorini, Amorgos, Paros and Sikinos, whilst the port of Ios has a distance of 111 nautical miles from Pireaus. It has a maximum length of 18 km and a maximum width of 11 km. The terrain of the island is dry and mountainous. In its coastline there are excellent beaches.
The island was inhabited since the 3rd millennium BC and in the Late Bronze Age the island was influenced by Minoan Crete. Ios along with six other Greek regions claim to be the birth place of Homer. The island during Classical times was apart of the first and the second Athenian Alliance. In the 2nd century BC it was taken by Romans and during that time it was a place of exile. In the years of the Byzantine Empire the island declined and in 1207 it was taken by Venetians. In 1269-1296 it passed into Byzantines and then it passed into Domenico Skiavi which gave it to the Venetians. In 1371-1508 it was ruled by the dynasty of Crispi. In 1537 it suffered the rages of the Algerian pirate Barbarossa who was at the service of the Sultan and so the island became a part of the Ottoman Empire in 1566 AD. In 1821 the flag of the revolution was raised and the island became a part of the Greek state since its formation.