Answer:
large numbers of anxious people withdrew their deposits forcing banks to liquidate loans and often leading to bank failure
Wave of invader swept across Western Europe (Vikings, Franks, Goths, and Huns) trade slowed down to a trickle (people became more isolated) towns became empty, and classic learning just stopped.
Because of climate change and drought wich caused the fall of the mongol empire thats also how it change over time
D) The state of Massachusetts ordered farmers to pay their debts or face jail time.
