Mostly the reasons were economic. The country's economy was dismembered when it entered the great depression and they had to take care of that. The South used this to reinforce its values because nobody was bothering them since the great depression forced the government to move its focus on something else.
Berlín conference of 1884 - 85 ( Congo Conference ) regulated European colonization for trade in Africa during the New Imperialism period
The civil war was fought over the moral issue of slavery it was the main conflicting cause of the civil war
James Madison
The first 10 amendments to the Constitution make up the Bill of Rights. James Madison wrote the amendments, which list specific prohibitions on governmental power, in response to calls from several states for greater constitutional protection for individual liberties.