I believe Russia adopted Orthodox Christianity.
Answer:
The northerners thought that every person should have freedom, the southerners didn't believe that the slaves were people.
Explanation:
People in the north at the time believed that if not everyone was free, it wasn't actually a free nation. People in the south saw the slaves more as cash cows, and they thought that taking away the South's main source of income would cripple the American economy.
Answer:
From overpopulation, warefires, worn out land, and possibly other things too