At the time of the American Revolution, several individuals and churches saw that slavery contradicted American ideals of liberty. The campaign to end slavery, however, grew with nineteenth century evangelicalism, which combined revivalism and reform. After experiencing conversion, many new Christians went on to seek perfection in society. The American Anti-Slavery Society was formed in 1833, and soon had active "chapters" throughout the northern states. William Lloyd Garrison, of radical Quaker origins, was the editor of The Liberator, the foremost anti-slavery paper. Abolitionism was a broad movement: some abolitionists favored gradually phasing out slavery and others demanded immediate emancipation. Harriet Beecher Stowe's novel, Uncle Tom's Cabin, first published in 1852, convinced a wide readership that slavery should be abolished. African- American churches and leaders such as Douglass, Truth, and Tubman opposed slavery vigorously.