Harriet Beecher Stowe was an American author and abolitionist best known for her novel 'Uncle Tom's Cabin', published in 1852. This groundbreaking work played a crucial role in shaping public opinion against slavery, contributing to the growing abolitionist movement during the Age of Reform. Stowe's vivid portrayals of the struggles faced by enslaved individuals helped ignite a national conversation on the morality of slavery and its implications for American society.