In the splendid island of Sant'Antioco, inhabited since the 3rd millennium BC, as confirmed by the domus de Janus at Is Pruinis, the Phoenicians lived peacefully alongside the Nuraghic populations, founding Sulki (later Sulci) in around 770 BC, lending its name to the south-western territory of Sardinia. Trade connections ran from the south-eastern coast to the Iberian peninsula, North Africa and Etruria. Sulki was the arrival point for people from Phoenicia and the colony of Carthage, as well as trade with the Greeks and Etruscans. It became one of the most important Phoenician centres, and passed to the Carthaginians in 520 BC. The Punic victory brought a period of crisis, but Sulci flourished once again thanks to the position of its port and the enormous resources in the territory, including silver.