The Society for the Relief of Free Negroes Unlawfully Held in Bondage was the first American abolition society. It was founded April 14, 1775, in Philadelphia, Pennsylvania, and held four meetings. Seventeen of the 24 men who attended initial meetings of the Society were Quakers, that is, members of the Religious Society of Friends, a branch of Christianity notable in the early history of Pennsylvania.
It was reorganized in 1784 as the Pennsylvania Society for Promoting the Abolition of Slavery and for the Relief of Free Negroes Unlawfully Held in Bondage, (better known as the Pennsylvania Abolition Society) and was incorporated in 1789.
At some point after 1785, Benjamin Franklin was elected as the organization's president.