c) “Uncle Tom’s Cabin”

“Uncle Tom’s Cabin” by Harriet Beecher Stowe was the first American book to sell more than a million copies. Published in 1852, the novel played a significant role in shaping public opinion about slavery in the years leading up to the American Civil War. Its vivid portrayal of the harsh realities of slavery and its humanizing depiction of enslaved people had a profound impact on attitudes in the North and bolstered the abolitionist movement, making it one of the most influential works in American literature.