Civil War: A conflict fought between 1861 and 1865 between the Northern states (Union) and Southern states (Confederacy), which ultimately led to the abolition of slavery.
Emancipation Proclamation: An executive order issued by President Abraham Lincoln in 1863 during the Civil War, declaring all slaves within Confederate territory to be forever free.
Thirteenth Amendment: The constitutional amendment ratified in 1865 that officially abolished slavery throughout the United States.