On December 6, 1865, just months after the Civil War ended, the 13th amendment outlawing slavery was ratified and became of the law of the land. But that didn't mean every state approved the ratification of the amendment. Mississippi's state legislature, for example, was dominated by whites bitter over the defeat of the Confederacy, and they rejected the measure. 130 years passed before Mississippi took action. By 1995 Mississippi was the only state in the Union that had not approved the ratification of the 13th amendment.

Finally, on…