The earliest human occupation on the hill goes back to the Neolithic period (about 5000 B.C.). It was followed by successive settlements but their remains have been destroyed almost completely by the extensive construction arrangement of the Mycenaean age. Enough evidence survived from the settlement of the Early Bronze Age (2500-2000 B.C.) to prove the existence then of a series of apsidal houses arranged around a very huge circular building (diam. 28 m) on the summit of the hill.