Slavery in the United States legally ended when the Thirteenth Amendment to the Constitution was ratified on December 6, 1865, abolishing slavery nationwide (except as punishment for a crime).

Quick Scoop: Key Dates

  • 1863 – Emancipation Proclamation declared enslaved people in Confederate states “forever free,” but it did not end slavery everywhere and could not be fully enforced while the Civil War was ongoing.
  • June 19, 1865 (Juneteenth) – Union General Gordon Granger announced General Order No. 3 in Galveston, Texas, enforcing freedom for enslaved people in the last Confederate state where large-scale slavery still operated.
  • December 6, 1865 – Ratification of the Thirteenth Amendment formally abolished slavery throughout the United States and its jurisdictions.
  • 1866 – New treaties with several Native Nations (such as the so‑called “Five Civilized Tribes”) ended their legal recognition of Black chattel slavery, closing one of the last formal loopholes in the continental U.S.

Why people give different answers

  • If someone says “1863,” they are usually referring to the Emancipation Proclamation.
  • If they say “1865,” they may mean Juneteenth (June 19, 1865) or the Thirteenth Amendment (Dec. 6, 1865).
  • Some historians point to 1866 as the final end of slavery as a legal institution in Indian Territory, and others note that the Thirteenth Amendment’s “except as punishment for crime” clause allowed forms of coerced labor to continue in prisons.

In everyday use, when people ask “when did slavery end in America,” the historically most accurate single answer is: with the ratification of the Thirteenth Amendment on December 6, 1865.

Information gathered from public forums or data available on the internet and portrayed here.