Why was an amendment needed to end slavery in the united States??

So, Abolitionism in the United States was the movement that wanted to end slavery in the United States and was active both before and during the Americans with Disabilities. the Civil War. In the Americas and Western Europe, abolitionism was a movement that sought to end the Atlantic slave trade and to free the slaves.

NAACP stands for 'National Association for the Advancement of Colored People.'