Two other important slavery-related developments occurred while Jackson was in office. In January 1831, William Lloyd Garrison established "The Liberator", which emerged as the most influential abolitionist newspaper in the country. While many slavery opponents sought the gradual emancipation of all slaves, Garrison called for the immediate abolition of slavery throughout the country. Garrison also established the American Anti-Slavery Society, which grew to approximately 250,000 members by 1838. In the same year that Garrison founded "The Liberator," Nat Turner launched the largest slave rebellion in U.S. history. After killing dozens of whites in southeastern Virginia across two days, Turner's rebels were suppressed by a combination of vigilantes, the state militia, and federal soldiers.