Explain the transition from the roman society to medieval society. politically, socially, religiously, and economically. how did this thing change rome to a medieval society?

It was a forced transition,due to the german tribes,who were constantly attacking roman empire,robing and burning everything in theyr way.the rulers had to change big cities,hard to defend,for smal villages,easyer to defend.the religios change took place in 313,with the edict of milano,when the roman emperor Constantn the great proclamed crhistianity as oficil religion of the roman empire.