The first National Negro Convention meets in Philadelphia.
William Lloyd Garrison publishes the first issue of the Liberator, his abolitionist newspaper.
Nat Turner leads a slave rebellion in Virginia; 60 whites and more than 200 blacks die. Turner is executed; southern states pass new security measures.
The American Anti-Slavery Society is founded by the black and white abolitionists.
Mobs riot against free blacks in Philadelphia and New York.
Frederick Douglass escapes from slavery to New York City where he begins his career as a leading black abolitionist.