Frederick Douglass, Sojourner Truth and John Brown are the three peoples who contributed to the anti-salvery/abolitionist movement.
Earlier movements to abolish slavery had not been as organised, militant, or quick as the abolitionist movement. It made its official debut about 1830. According to historians, the Second Great Awakening's philosophical views served as an inspiration for abolitionists to fight against slavery.
On January 1, 1863, President Abraham Lincoln issued the Emancipation Proclamation, abolitionizing slavery over much of the South. Slavery was outlawed in the United States in 1865 according to the 13th Amendment to the Constitution.
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