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.
Voting Rights Act of 1965
In the wake of the events in Selma, President Johnson, addressing a televised joint session of Congress on March 15, called on legislators to enact expansive voting rights legislation. He concluded his speech with the words "we shall overcome", a major anthem of the Civil Rights Movement. The Voting Rights Act of 1965 was introduced in Congress two days later while civil rights leaders, now under the protection of federal troops, led a march of 25,000 people from Selma to Montgomery.