Life of Harriet Beecher Stowe, compiled from her letters and journals by her son

According to Wikipedia: "Harriet Beecher Stowe (June 14, 1811 – July 1, 1896) was an abolitionist, whose novel Uncle Tom's Cabin (1852) attacked the cruelty of slavery; it reached millions as a novel and play, and became influential in the U.S. and Britain. It made the political issues of the 1850s regarding slavery tangible to millions, energizing anti-slavery forces in the American North. It angered and annoyed the South. The impact is summed up in a commonly quoted statement apocryphally attributed to Abraham Lincoln. When he met Stowe, it is claimed that he said, "So you're the little woman who wrote the book that made this great war!""