When was slavery abolished in usa?

Slavery in the United States was abolished through a series of events and legislative actions, culminating in the following key milestones:

Emancipation Proclamation

On January 1, 1863, President Abraham Lincoln issued the Emancipation Proclamation, which declared that all persons held as slaves in states still in rebellion against the United States were free. However, this proclamation did not apply to border states or areas already under Union control, and it was contingent on the Union's military victory23.

Thirteenth Amendment

The definitive abolition of slavery came with the ratification of the Thirteenth Amendment to the U.S. Constitution. This amendment was passed by the Senate on April 8, 1864, and by the House of Representatives on January 31, 1865. It was ratified by the necessary three-fourths of the states on December 6, 1865, officially abolishing chattel slavery and involuntary servitude, except as punishment for a crime13.

Final End of Slavery in Indian Territories

Even after the ratification of the Thirteenth Amendment, slavery persisted in some Native American territories. It was not until June 14, 1866, when the Creek Tribe agreed to abandon slavery, that slavery was fully eradicated from all parts of the United States, including Indian Territory4.

In summary, while the Emancipation Proclamation marked a significant step towards ending slavery in 1863, the legal institution of slavery was formally abolished nationwide with the ratification of the Thirteenth Amendment on December 6, 1865, and fully eradicated by June 14, 1866.