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.
Racial segregation
Institutionalized racial segregation was ended as an official practice during the civil rights movement by the efforts of such civil rights activists as Clarence M. Mitchell Jr., Rosa Parks, and Martin Luther King Jr., working for social and political freedom during the period from the end of World War II through the passage of the Civil Rights Act in 1964 and the Voting Rights Act in 1965 supported by President Lyndon B. Johnson. Many of their efforts were acts of non-violent civil disobedience aimed at disrupting the enforcement of racial segregation rules and laws, such as refusing to give up a seat in the black part of the bus to a white person (Rosa Parks), or holding sit-ins at all-white diners.