Despite the passage of the civil rights act of 1875, southern states implemented jim crow laws, which were designed to prevent african americans from gaining equality. support the plessy v. ferguson decision. uphold the fifteenth amendment. abolish the "separate but equal" doctrine.

answer is prevent african americans from gaining equality

Despite the passage of the Civil Rights Act of 1875, southern states implemented Jim Crow laws, which were designed to prevent African Americans from gaining equality.

Jim Crow laws are part of some state constitutions that mandated the segregation of public facilities like schools and transportation for whites and blacks. Segregation of restrooms, restaurants, and drinking fountains are also mandated by Jim Crow laws. 

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