In the early of eighth century B.C. when Dorieis colonists arrived in the island, possibly Spartiates, with their leader Theras, founded the settlement which took their leader’s name in the steep, embattled peak of Mesa Vouno, which is a hill (385 meters) that belongs to the pre volcano core of the island and predominates in its southeastern end. Cobbled streets in Sellada’s slopes, the sol that unites the hill with the mountainous bulge of Prophet Elias in the northwest, were connecting the city with the coastal territories in the foothill of Mesa Vouno where its seaport settlements Oia in the north (Kamari) and Eleusis in the south (Perissa) were founded.