Final answer:
Key anti-slavery publications in the North included William Lloyd Garrison's 'The Liberator' and Harriet Beecher Stowe's 'Uncle Tom's Cabin', along with Frederick Douglass's autobiography and his newspaper 'North Star'.
Step-by-step explanation:
Several prominent anti-slavery publications existed in the North prior to the Civil War, playing a crucial role in the abolitionist movement. One key example was The Liberator, founded by William Lloyd Garrison in 1831, which was steadfast in calling for the immediate abolition of slavery. Harriet Beecher Stowe's Uncle Tom's Cabin, although a novel, was an immensely influential publication that vividly portrayed the brutal realities of slave life and galvanized anti-slavery sentiment. The autobiography of Frederick Douglass, who also later published the North Star newspaper, highlighted the personal plight of slaves and contributed significantly to the cause. These publications, along with widespread pamphleting and public speeches, helped to heighten public awareness and generate support for the abolition of slavery.