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.
The transition from Roman to medieval society involved significant political fragmentation, the establishment of a feudal social structure, the rise of Christianity as a central religious authority, and a shift to localized agriculture-driven economies. This transformation created a new societal framework characterized by the absence of centralized power and the dominance of local lords. The blend of Roman, Germanic, and Christian elements ultimately defined the medieval period in Europe.
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