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.
1438 AD was when.. I’m not sure how long sorry
Answer:
1) Always instability. With the people constantly bickering and the insecurity of families, there is little ground for the nation to build upon.
2) Martial law. It broke down barriers, but also set many people back. The control was not safety, it was an offensive move that scared many.
3) Religion. This is always a big factor for history, modern or ancient. The people fighting over religion leads to fighting over anything.
Police or other law enforcement cannot search my house unless they have a warrant or probable cause
So we can understand what they do. It is sometimes different from our culture and may seem weird, but it is very normal to them. A good source of knowledge.