On Dec. 2, 1859, abolitionist John Brown was hanged in Charleston, Va., for his leadership of a plot to incite slave rebellion.
On August 20, 1830 the National Negro Convention held its first meeting in Philadelphia. The event was chaired and led by Bishop Richard Allen.
On June 18, 1822, slave revolt leaders Denmark Vesey, Peter Poyas and others were arrested in South Carolina. Vesey was hailed as a hero by abolitionists during the Civil War, including Frederick Douglass.