Aquileia was the fourth city of Italy in AD 395; today it has 3,097 residents and the largest early Christian mosaic in the West
Founded as a Roman colony in 181 BC, Aquileia became the capital of the Tenth Region, Venetia et Histria, a trading centre of close to 100,000 people in the 2nd century; when Theodosius died in 395 it was the ninth city of the Empire and the fourth in Italy, after Rome, Milan and Capua. On 18 July 452 Attila broke into the city and laid it waste; salt, it is said, was scattered over the ruins. Today the town, in Friuli in the province of Udine, has 3,097 inhabitants, and inside the basilica the floor laid for Bishop Theodore in the early 4th century covers more than 760 square metres: the oldest Christian mosaic and the largest in the West, a UNESCO site since 1998.
