The end of slavery in the US finally came after what?

The end of slavery in the United States came after the Civil War, culminating in the ratification of the 13th Amendment on December 6, 1865. This amendment formally abolished slavery throughout the country, ensuring that "neither slavery nor involuntary servitude, except as a punishment for crime, shall exist within the United States." The war and subsequent legislative changes reflected a significant shift in societal attitudes toward slavery and human rights.