The correct answer to this open question is the following.
The political, economic, and social reforms introduced in the South between 1864 and 1877 were aimed to give black slaves freedom in the southern states, give them civil rights, the Reconstruction period started to help the South and to reintegrate them into the Union. It was a time when -in opposition to Reconstruction legislation. southerners created the Jim Crow laws and the black codes that limited the civil rights of the African Americans in the South. It was a time that also saw the creation of the Freedmen's Bureau.
Most of these reforms didn't survive the Compromise of 1877, because as part of the negotiations between Republicans and Democrats to facilitate the victory of Rutherford B. Hayes to the presidency. After this negotiation, Hayes removed the military troops from the South.
