Etruscan civilization flourished in three confederacies of cities: of Etruria, of the Po Valley with the eastern Alps, and of Latium and Campania. The culture that is identifiably Etruscan developed in Italy after about 800 BC approximately over the range of the preceding Iron Age Villanovan culture. The latter gave way in the 7th century to a culture that was influenced by ancient Greece, Magna Graecia, and Phoenicia.