What is the Emancipation Proclamation in They Called Themselves the K.K.K.: The Birth of an American Terrorist Group by Susan Campbell Bartoletti?

Abraham Lincoln signed the Proclamation on January 1, 1863. It decreed that all slaves in the eleven Rebel states were free. It was not until January of 1865 when the North was obviously winning that the Congress passed it as the Thirteenth Amendment. The Thirteenth Amendment freed the slaves everywhere instead of just the thirteen Rebel states. It took another year to fully ratify the amendment.