Diapositiva di PowerPoint
Great crisis and the fall of the Roman Empire led to the collapse of many of the empireís cities, including Bononia.
The number of residents fell drastically by more than fifty percent. Around the V century A.D., the inhabited area which was saved was protected by a large wall, called the ìMura di Seleniteî (Selenite Wall), after the type of stone with which it was built.