The Tartessians were the original founders of Hispalis (ancient name of Sevilla).Next to this settlement, in 207 B.C., the Romans built Itálica. It was the centre of their Western Mediterranean dominions for seven centuries until the Roman empire was overrun by Northern barbarians at the beginning of the 10th century. The long Moorish occupation of the Iberian peninsula, from 711 A.D. to 1248 A.D., left indelible traces in Seville as in all of Al-Andalus. La Giralda, the tower of an important mosque, is the most well-known of the remaining Islamic monuments. In 1929, it hosted the Latin American Exhibition, which left important urban improvements in the city, and was the kick for the modern and dynamic city it is today.