Civil Rights Act, 1875Federal act designed to prohibit social discrimination against blacks, passed by Congress on March 1, 1875. The act guaranteed to all citizens—regardless of race, color, or previous condition of servitude—equal rights in public places, such as inns, theaters, restaurants, and public conveyances. Denial of these rights was punishable by payment to the aggrieved person and fine or imprisonment. Many whites refused to obey the act, and in 1883 the Supreme Court struck down the law as unconstitutional on the grounds that Congress did not have the authority to legislate the social customs of any state. The 1875 act was the last federal civil rights legislation until the Civil Rights Act of 1957.