Slavery began in North America in 1619 and existed because it was believed to be God's will and a way to civilize Africans, though slaves faced brutal treatment. The abolitionism movement sought to end slavery and asserted all men are equal. This led to the American Civil War between slave states and free states from 1861-1865. Ultimately, the Union prevailed and slavery was abolished with the 13th amendment's ratification on December 6, 1865, though discrimination continued.