Answer:
The gap between rich and poor people increased
The value of German money decreased dramatically, leaving it essentially useless. The German government did not truly pay off their debt. It was so extreme that it was cheaper to burn money than to buy wood.
Somewhat, with the astrolabe, triangular sail and compass they already had settled paths
With the French and Indian War over, many colonists saw no need for soldiers to be stationed in the colonies. Britain also needed money to pay for its war debts. The King and Parliament believed they had the right to tax the colonies. ... They protested, saying that these taxes violated their rights as British citizens.
Barbarian incursion
Ostrogoths
Visigoths
Franks
Rebels
Gepids
Huns
etc....