By the end of the Reconstruction era, most African-Americans in the United States found themselves increasingly left out of the political process because of poll taxes and literacy tests. The Reconstruction was bitterly resentful for the most part of the whites of the south, some of whom formed the Ku Klux Klan, a violent secret society that hoped to protect the interests and advantages of whites by terrorizing blacks and preventing them from achieving social progress.
The reconstruction was a period of American history that lasted from 1865 to 1877, during which the United States was devoted primarily to resolve issues that had remained pending after the end of the Civil War