Cultural Assimilation or Acculturation is the act of adopting new cultures to come and replace the old one
Miranda v. Arizona was the reason that the fifth amendment was put into place. The fifth amendment states that people cannot be subjected to capital punishment without their rights being read to them and that's how we got the Miranda rights.
The North came out in relatively good condition. This is speculated to be due to the war being fought mostly in the south and that the north won, and when you see how the south was left in shambles, you can assume that the North was having a great time post-civil war.
50 old destroyers is the answer i believe.