when did slavery end in the us

Slavery in the United States officially ended with the ratification of the 13th Amendment to the U.S. Constitution on December 6, 1865. This amendment abolished slavery and involuntary servitude throughout the entire country. While the Emancipation Proclamation issued by President Abraham Lincoln on January 1, 1863, declared freedom for slaves in the Confederate states, it did not end slavery nationwide. The full abolition was finalized by the 13th Amendment, which was passed by Congress earlier in 1865 and then ratified by the states in December 1865, providing a constitutional guarantee to end slavery.