I think the main cause was slavery in the economy and society and there were pro slavery and free states so that didn’t work out
Answer:
Northern states favored tariffs because they helped strengthen their industrial-based economy.
The Soviet Union This caused the separation of Germany, into Eastern and Western Block. East Germany was influenced by Soviet Union's communism while the West Germany was influenced by United States' Democracy
The conflict between Henry IV and Gregory VII Concerned the question of who got to appoint local church officials. Henry believe that, asking, he has the right to a point the bishop of the German church. This was known as lag investiture.
Hope that helped