When were the abolitionists was made?

The abolitionist movement in the United States began to gain significant momentum in the early to mid-19th century. Key events include the formation of the American Anti-Slavery Society in 1833 and the publication of Harriet Beecher Stowe's "Uncle Tom's Cabin" in 1852, which helped to galvanize public opinion against slavery. The movement ultimately led to the abolition of slavery with the passage of the 13th Amendment in 1865.