Answer: Vikings, Muslims, and Magyars invaded Europe at a time of political weakness.
Explanation:
Feudalism refers to a system where the King or Queen was the absolute monarch and as a result owned all the land but could give it to Nobles who would then become rich and powerful.
This system was as a result of people needing such protection that they bounded around the Nobles to protect them when invasions from groups such as the Vikings, the Muslims and the Magyars threatened their security in a way the monarchs could not effectively protect them.
Answer:
The rise in the supply of consumer goods from England
Explanation:
The key factor that made it possible that the United States become a society of consumers in the late eighteenth century was "the rise in the supply of consumer goods from England."
This is evident in the fact that the British were making America their market or dumping ground as they gather raw materials from the American continent and use them to make fine and refined goods. Thereby sending it back to America for sales.