New England Anti-Slavery Society is established.

Founded by William Lloyd Garrison and a dozen other white men, it meets for the first time in the basement at the African Meeting House – after being denied the use of Faneuil Hall, Old South Meeting House, and Park Street Church. The first anti-slavery organization in New England (the first in the U.S. was established in Philadelphia on April 14, 1775), it becomes the most influential abolitionist organization in Boston. After the meeting Garrison declares, “We have met to-night in this obscure school-house; our numbers are few and our influence limited; but, marry my prediction, Faneuil Hall shall ere long echo with the principles we have set forth. We shall shake the Nation by their mighty power.” The group subsequently meets at Franklin Hall. It merges with the General Colored Association in 1833 and becomes the Massachusetts Anti-Slavery Society in 1835.