Akrotiri of Thera it is one of the most important prehistoric settlements of the Aegean. The first habitation at the site dates from the Late Neolithic times (at least the 4th millenium B.C.). During the Early Bronze Age (3rd millenium B.C.), a sizeable settlement was founded and in the Middle and early Late Bronze Age (ca. 20th-17th centuries B.C.) it was extended and gradually developed into one of the main urban centres and ports of the Aegean.