Answer:
Plagues, sickness and some cities didn't have the money to regulate trade.
Explanation:
Answer: The attempts by Britain to tax its North American colonists in the late 1700s led to arguments, war, the expulsion of British rule and the creation of a new nation.
Explanation:
Class struggle and political revolution is necessary for socialism to emerge. They think that everyone will just adopt it, without struggle or a fight, if it's represented convincingly.