The document summarizes key events of Radical Reconstruction from 1867 to 1872. It discusses the Reconstruction Act of 1867 which divided the South into military districts and required new state constitutions. It also mentions the impeachment of President Johnson, the ratification of the 14th and 15th Amendments, and the elections of Ulysses S. Grant in 1868 and 1872 during the rise of Jim Crow laws and the Supreme Court's "separate but equal" ruling in Plessy v. Ferguson.