the answer is
1. the Reconstruction Era after the Civil War had the most impact on Southern life because he was an attempt to bring back and they come for the right State back into the union and held the former slaves. it's filled because many white people are there did not want an alien power telling them what to do. They pass Jim Crow laws to segregate people by race. Also they had races organizations like the Klu Klux Klan to terrify the former slaves and prevent them from speaking up.
2. the most challenges because it's questioned of norms of Southern life already familiar to the most people, like segregation. It forced to stop segregation were made with violent resistance. There were violent mobs to threaten The Movement, Like The Little Rock Nine who had to be protected by soldiers. Also activities in the movie with were injured or killed, like Martin Luther King jr.
3. granted two different route to votes were the 15th slaves, 19th woman, and the 26th 18+. amendments were needed to expand voting rights because people started thinking that those groups deserve a chance to be hurt, and also because of that tissue in petitioning of the right to vote by those groups.
