Earlier movements to abolish slavery were less organized, less radical, and less time-sensitive than the abolitionist movement. Around 1830, it made its formal debut.
The Second Great Awakening, a religious movement, is credited with inspiring abolitionists to fight against slavery, according to historians.
Abolitionism, a movement to abolish slavery in the United States, was active from the late colonial period until the American Civil War, whose conclusion resulted in the Thirteenth Amendment to the United States Constitution outlawing slavery in the country (ratified 1865).
Abolitionists joined themselves with the Union side after the Civil War broke out in 1861. When President Abraham Lincoln announced the emancipation of slaves in several regions of the South on January 1, 1863, they celebrated. The 13th Amendment to the U.S. Constitution ended slavery in the nation in 1865.
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