Take a look at an image of the 13th Amendment to the Constitution, passed by Congress on January 31, 1865 and ratified on December 6, 1865. The interactive image is accompanied by an overview of the amendment's inception and adoption, as well as document transcript.  This amendment, along with the 14th, 15th and 19th, played a huge part in increasing and securing Americans’ civil rights.

courtesy of netTrekker