Answer:
The quality of life decreased greatly because there was a food shortage, no running water and diseases. They took the building materials from their great structures for quick use.
Rome's fall ended the ancient world and the Middle Ages were borne. These “Dark Ages” brought the end to much that was Roman. The West fell into turmoil. However, while much was lost, western civilization still owes a debt to the Romans.
The feudal system started because the Roman Empire fell. It affected the European society by making Europe be divided into Barbarian kingdoms. ... It was also affected by Europe not having a civilization anymore and in addition, Europe started the Middle Ages.
