The political balance between slave and free states as of 1819 was disturbed by the "Kansas-Nebraska Act," since this determined that the "slave or free" question in each new state would be decided by popular sovereignty.
Answer:
The settlers were from Europe and landed on the coast of North America
Answer: Because Germany's army was a pushy army and always went straight to fighting which proved successful. Then japan bombed pearl harbor making the US join WWII and they had promised to help one of the countries that were fighting Germany. So the other countries had pushed Germany back so much into their territory that Hitler took his life
Explanation:
I would say B because nationalism wasn't limited by political sidings