The word or phrase to fill into the gap is the "Ku Klux Klan", an extreme right organization calling for what they would call a "purification" of the US-American society.
I do not believe that this factor is a factor that needs a grant. it is a small factor of maturity, and a momentary factor, there is not a great disparity which is justifiable to have a scholarship for that, in my view it is a minimal difference that is soon matched.
Answer:
It created a central government that had very little power. Individual state governments kept most of the power.
One of the main causes was the rise of the Nazi party in Germany. Other considerable causes could be issues from past wars such as WW1. The effects were from the Cold War. There was a lot to break down. Some historians did tons of work to bring you and I this knowledge that's for sure.
Hope this is the answer you were looking for and that it helps. :)
