In Diocletian's time there were many martyrs. The fact that Diocletian was born in Salona or its surroundings, and built a famous castle nearby, made this already famous centre more interesting. Big port and numerous roads which led to the other parts of empire show that this was an important center. Via Munita and it led to Trogir then near the coast to Akvilea and further connected to Italian and German roads. The Christian community in town grew very strongly in last three centuries of old Salona and exerted a big influence in whole province.
Solonian bishop become metropolitan for the whole province of Dalmatia.
At that time Barbarians, e.g. East Goths in 5 th century, began to break into all parts of the empire. Western Roman Empire fell under their attack, Salona, which was far enough, lasted for 130 years longer and gave shelter to the few of the last West Roman emperors. The City was destroyed in 614 by the Slav and Avari tribes. Citizens who managed to escape hid on the islands and in Diocletian castle. It is there that the life of a new city today s Split .