1833 National anti-slavery group established
1834 White mobs riot, rampage in two cities
1834-1837 Anti-abolition and racist violence surges
1835 Activists foil kidnappers, help fugitives to freedom
1835 Abolitionist women run gauntlet of Boston mob
1836-1837 Pro-slavery mobs kill abolitionist publishers
1837 Wendell Phillips: Powerful voice for abolition
1838 Mob torches hall after attacking abolitionists
1860 Abolitionist plot rumors spark deadly rampage
1860 Boston mob disrupts meeting to honor John Brown
1860 Wide Awake: The movement that helps Lincoln win
1861 Bloody clashes in Baltimore as Civil War starts