According to preliminary investigations conducted during the 1950s by the French scholar Roger Grosjean, the Torrean civilization began when, at the end of the second millennium BC, the Sea People known as Sherden landed on the island from the Eastern Mediterranean, subduing the native megalithic population.
[1] During the Iron Age, the towers and castles were still occupied,[7] but the relationships with Sardinia become less intense (the characteristic Nuragic bronze statuettes are absent in Corsica), while in the north there were increasing contacts with Tuscany and Liguria.
The Corsi were in turn divided into several other tribes that dwelt in Corsica: the Belatoni, Cervini, Cilibensi, Cumanesi, Licinini, Macrini, Opini, Subasani, Sumbri, Tarabeni, Titiani, and Venacini.
[3] Torrean buildings with specifically religious functions are unknown, making it difficult to identify a possible priestly caste; religiosity was expressed, as in the past, in the maintenance of places like coffres (circular tombs with stone cists) and the dolmens.
In Bronze Age Corsica there was a notable expansion in metallurgy and trade with the East, as evidenced by the discovery at Borgo of a copper oxhide ingot and some cobalt beads, goods coming from Cyprus and the Aegean, respectively.