Answer:
In 1863, President Lincoln issued the Emancipation Proclamation, an executive order that freed the slaves in the Confederate states.
Explanation:
The Emancipation Proclamation was an executive order issued by U.S. President Abraham Lincoln on January 1, 1863, during the American Civil War using his war powers. It proclaimed the freedom of slaves in the 10 states then in rebellion, applying to 3.1 million of the 4 million slaves in the United States at that time. The Proclamation immediately freed 50,000 slaves, with nearly all of the rest of the 3.1 million freed as Union armies advanced. The Proclamation did not compensate the owners, outlaw slavery, or grant ex-slaves, called ” freedmen,” citizenship.