 Complete the following phrase:  Scala is the oldest town on the Amalfi coast, set about above sea level. According to tradition, it was founded in the 4th century AD by a group of shipwrecked Romans trying to make their way to Constantinople. A fortified bulwark, Scala was part of the defensive system of the territory of Amalfi. Its history is closely related to that of the Marine Republic of Amalfi. It was a bishopric from 987 to 1818. In 1073 during the 