<span>many ethnic groups wanted their own nation-states</span>
The Answer is true!!!!!!!!!!!!
It brought the USA into a war that up till now they were trying to stay out of. It also caused the creation and use of the first nuclear bomb
Answer:
The 13th Amendment made slavery completely illegal in the United States.
The 15th Amendment gives everyone the right to vote.
Explanation:
If these two Amendments weren't in play then the US would probably still look like the 1780s. So in my opinion, these two Amendments are the most important Amendments.