"Impact of the Black Codes
The restrictive nature of the codes and widespread black resistance to their enforcement enraged many in the North, who argued that the codes violated the fundamental principles of free labor ideology.After passing the Civil Rights Act (over Johnson’s veto), Republicans in Congress effectively took control of Reconstruction. The Reconstruction Act of 1867 required southern states to ratify the 14th Amendment—which granted “equal protection” of the Constitution to former slaves—and enact universal male suffrage before they could rejoin the Union.
The 15th Amendment, adopted in 1870, guaranteed that a citizen’s right to vote would not be denied “on account of race, color, or previous condition of servitude.” During this period of Radical Reconstruction (1867-1877), blacks won election to southern state governments and even to the U.S. Congress.As indicated by the passage of the black codes, however, white southerners showed a steadfast commitment to ensuring their supremacy and the survival of plantation agriculture in the postwar years. Support for Reconstruction policies waned after the early 1870s, undermined by the violence of white supremacist organizations such as the Ku Klux Klan.
By 1877, when the last federal soldiers left the South and Reconstruction drew to a close, blacks had seen little improvement in their economic and social status, and the vigorous efforts of white supremacist forces throughout the region had undone the political gains they had made. Discrimination would continue in America with the rise of Jim Crow laws, but would inspire the Civil Rights Movement to come."