What was Stowe's purpose?

Stowe was also inspired by her personal experience with the antislavery movement during her childhood on the northern side of the Ohio River, a border between slave states and freedom. With the urging of her sister-in-law, Stowe decided to use her writing skills to further the abolitionist, or anti-slavery, cause. Thus, Uncle Tom's Cabin was born.

It began as a series of stories throughout 1851-52 for the National Era, a Washington abolitionist newspaper. Upon its publication in 1852 by the Boston publishing company Jewett, Uncle Tom's Cabin became so popular that it sold more copies than any book before that with the acception of the Bible. Stowe toured the United States and Europe to speak against slavery and wrote A Key to Uncle Tom's Cabin a year later, in 1853, to provide documentation of the truth upon which her novel is based.