1866 – The 14th Amendment to the U.S. Constitution was passed by the U.S. Congress. It was ratified on July 9, 1868. The amendment was designed to grant citizenship to and protect the civil liberties of recently freed slaves. It did this by prohibiting states from denying or abridging the privileges or immunities of citizens of the United States, depriving any person of his life, liberty, or property without due process of law, or denying to any person within their jurisdiction the equal protection of the laws.