The United States restricted the amount of European immigration done, they weren't participating or even a part of the League of Nations, and people were just tired of getting to foreign wars as a whole. Only 150,000 immigrants per year were allowed to immigrate to America in 1929.
Because it could only really apply to the rebellion states. The Confederacy already had a lot of control over their own slavery laws.
Answer:
1496
Explanation:
Subtract the smaller number by the bigger number and you get the answer. Your Welcome