Civil Rights Act of 1866
The Civil Rights Act of 1866, , enacted April 9, 1866, was the first United States federal law to define citizenship and affirm that all citizens are equally protected by the law. It was mainly intended, in the wake of the American Civil War, to protect the civil rights of persons of African descent born in or brought to the United States. This legislation was passed by Congress in 1865 and vetoed by U.S. President Andrew Johnson. In April 1866 Congress again passed the bill to support the Thirteenth Amendment. Johnson again vetoed it, but a two-thirds majority in each chamber overcame the veto to become law without presidential signature.
Benjamin Butler
Butler wrote the initial version of the Civil Rights Act of 1871 (also known as the Ku Klux Klan Act). After his bill was defeated, Representative Samuel Shellabarger of Ohio drafted another bill, only slightly less sweeping than Butler's, that successfully passed both houses and became law upon Grant's signature on April 20. Along with Republican Senator Charles Sumner, Butler proposed the Civil Rights Act of 1875, a seminal and far-reaching law banning racial discrimination in public accommodations. The Supreme Court of the United States declared the law unconstitutional in the 1883 Civil Rights Cases.