Established early in the 1^st millennium BC, ancient Teos, was a state of the Ionian Confederacy. The city lay over a hill that was to be the acropolis and extends to the south of the hill, -where a harbor was located. Teos was mentioned to have two harbors; the harbor to the south is the main harbor, and at the head of a little road, is the second harbor, located to the north- about a mile from the first. Near the south harbor, which was protected by a mole, the remains of a small Ionic temple were unearthed in the supervision of the French team. The 2^nd century BC theatre, still stands with the remains of the skene and cavea, on the south site of the acropolis hill. The Hellenistic walls were constructed to protect the lower city to the south. Also some square towers dating from the Hellenistic era, are expressed in the southwest part of the walls.