Answer:
During the Middle Ages, the Catholic Church exerted enormous power over Europe. The Church influenced governments, waged wars and levied taxes. Although some actions, such as the Medieval Inquisition, are controversial today, the Catholic Church also established universities and hospitals, instigated positive social change and paved the way for economic growth.
Do you have a pic I don't really understand?
The structure and durability of the papyrus is what made it last for so long.
Europe maintained unity after the Roman Empire. 1 through The power of the Papacy and the Christian faith, and 2 Through Feudalism because even though it caused fractures in regions it offered a clear power structure that allowed Strong nations to bring their weaker neighbors under their direct control.