The Voting Rights Act of 1965The Voting Rights Act, adopted initially in 1965 and extended in 1970, 1975, and 1982, is generally considered the most successful piece of civil rights legislation ever adopted by the United States Congress. The Act codifies and effectuates the 15th Amendment's permanent guarantee that, throughout the nation, no person shall be denied the right to vote on account of race or color. (United States Department of Justice)