List methods that states disenfranised african americans

In the United States of America was based on a series of laws, new constitutions, and practices in the South that were deliberately used to prevent black citizens from registering to vote and voting. These measures were enacted by the former Confederate states at the turn of the 20th century, and by Oklahoma when it gained statehood in 1907,[3] although not by the former border slave states. Their actions defied the intent of the Fifteenth Amendment to the United States Constitution, ratified in 1870, which was intended to protect the suffrage of freedmen after the American Civil War.

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