The Liberator (1831–1865) was a weekly abolitionist newspaper, printed and published in Boston by William Lloyd Garrison and, through 1839, by Isaac Knapp. Religious rather than political, it appealed to the moral conscience of its readers, urging them to demand immediate freeing of the slaves ("immediatism"). It also promoted women's rights, an issue that split the American abolitionist movement. Despite its modest circulation of 3,000, it had prominent and influential readers, including all the abolitionist leaders, among them Frederick Douglass, Beriah Green, Arthur and Lewis Tappan, and Alfred Niger. It frequently printed or reprinted letters, reports, sermons, and news stories relating to American slavery, becoming a sort of community bulletin board for the new abolitionist movement that Garrison helped foster. Garrison co-published weekly issues of The Liberator from Boston continuously for 35 years, from January 1, 1831, to the final issue of December 29, 1865. Although its circulation was only about 3,000, and three-quarters of subscribers (in 1834) were African Americans, the newspaper earned nationwide notoriety for its uncompromising advocacy of "immediate and complete emancipation of all slaves" in the United States. Garrison set the tone for the paper in his famous open letter "To the Public" in the first issue: Rather than looking to politics to create change, Garrison utilized nonviolent means, such as moral suasion, as his message throughout the newspaper. Garrison felt that slavery was a moral issue and used his way of writing to appeal to the morality of his readers as an attempt to influence them into changing their morally questionable ways. For example, "No Union with Slave-Holders" was a slogan utilized for weeks at a time throughout the newspaper's publication, advocating that the North should leave the Union. The Liberator continued for three decades from its founding through the end of the American Civil War. It had black columnists and reporters.