The Maryland Society for Promoting the Abolition of Slavery and the Relief of Free Negroes and Others Unlawfully Held, was founded in 1789. I am pretty sure this was the first open abolitionist group. Hope I helped. :)
Answer: The Quakers formed the first abolitionist group on the U.S.
Explanation:
Quaker missionaries first arrived in America in the mid-1650s. Quakers, who practice pacifism, played a key role in both the abolitionist and women’s rights movements.
