The Emancipation Proclamation took effect on January 1, 1863. President Abraham Lincoln issued it during the American Civil War, declaring enslaved people in areas still in rebellion against the United States to be free.
Lincoln announced a preliminary proclamation on September 22, 1862, after the Union victory at Antietam. That document gave Confederate states time to end their rebellion before the final proclamation became effective. The final order followed after no general settlement occurred.
The proclamation did not immediately abolish slavery everywhere. It applied only to designated areas under Confederate control and excluded loyal border states and certain Union-held regions. Its wartime legal basis was the president’s authority as commander in chief.
The Thirteenth Amendment, ratified in December 1865, abolished slavery throughout the United States. Juneteenth commemorates the arrival of federal enforcement in Galveston, Texas, on June 19, 1865, another date often confused with the proclamation’s effective date.