Why did feudalism start in medieval Europe?

When Rome fell in 410 AD a gap was left in the structure of government and services. The barbarian tribes raided without care and killed where they wanted. There was no one to protect the people and it was pure chaos. Fedualism developed out this when strong men came with armies to beat back the barbarians and to take control. The armies were a little less brutal than the barbarians and were more like "wiseguys" or the mob in controlling whole areas. The people who lived through this were just glad to have protection and to be able to grow crops and take care of their animals without fear.
When Rome fell in 410 AD a gap was left in the structure of government and services. The barbarian tribes raided without care and killed where they wanted. There was no one to protect the people and it was pure chaos. Fedualism developed out this when strong men came with armies to beat back the barbarians and to take control. The armies were a little less brutal than the barbarians and were more like "wiseguys" or the mob in controlling whole areas. The people who lived through this were just glad to have protection and to be able to grow crops and take care of their animals without fear.