Large numbers of Christians from throughout Jordan, particularly from al-Salt, have moved to Amman. Nearby Fuheis is a predominantly Christian town located to the northwest of the city. A small Armenian Catholic community of around 70 families is present in the city. Ecclesiastical courts for matters of personal status are also located in Amman. A total of 16 historic churches are located in Umm ar-Rasas ruins in Al-Jeezah district; the site is believed to have initially served as Roman fortified military camps which gradually became a town around the 5th century AD. It has not been completely excavated. It was influenced by several civilizations including the Romans, Byzantines and Muslims. The site contains some well-preserved mosaic floors, particularly the mosaic floor of the Church of Saint Stephen.