State laws passed primarily in Southern states to restrict the voting rights of African Americans after the passage of the Fifteenth Amendment came to be known collectively as

After the Fifteenth Amendment granted African American men the right to vote, Southern states used measures such as poll taxes and literacy tests to restrict that right. These discriminatory laws were part of the Jim Crow system, so the correct choice is Jim Crow laws. Black Codes were earlier laws that restricted the freedom of African Americans, especially just after the Civil War.

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