To date, more than ten layers of settlement have been discovered (Troy I to Troy X), which in turn are divided into over 40 fine layers. To put it simply, this includes Troy I (2950–2550 BC) and II (2550–2200) of the early, Troy III to V (2200–1700) of the Middle, Troy VI to VIIa (1700 to 12th century) the Late Bronze Age and Troy VIIb (12th century to around 1000 BC) of the Early Iron Age. Troy VIII and IX date from the 8th century BC. BC to the Roman period, Troy X, a Byzantine bishopric, goes back to the early Middle Ages.
Castle walls of Troy
Troy I was still lying directly on the beach. The citadel Troy II covered an area of approx. 9000 m² (four fire disasters), from Troy IV on the area was doubled, Troy VI had increased to about 50,000 m² to the south and east (not including the “lower town”). The fortress described by the author of the Iliad could be identical with Troy VI (according to another view with VIIa), which was built around the turn of the 14th to the 13th century BC. Chr. Went down. It is uncertain whether the cause was one of the frequent earthquakes or a conquest.
Source: Wikipedia