Answer:When slavery was abolished at the end of the Civil War, southern states created black codes, laws which aimed to keep white supremacy in place.
Black codes attempted to economically disable freed slaves, forcing African Americans to continue to work on plantations and to remain subject to racial hierarchy within the southern society.
Black codes gave rise to a new wave of radical Republicanism in Congress, and the eventual move towards enshrining racial equality into the Constitution. However, black codes also set precedent for Jim Crow laws.
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