Harriet Beecher Stowe's 1852 novel Uncle Tom's Cabin aroused strong reactions in both the North and South by vividly portraying the cruelty of slavery. It sold millions of copies and influenced public opinion in both America and Europe. In the 1857 Dred Scott decision, the Supreme Court ruled that slaves were property without rights and Congress could not ban slavery in territories, further straining sectional tensions. The 1860 election saw Republicans nominate Abraham Lincoln while the southern Democrats nominated John Breckinridge after walking out of the Democratic convention, reflecting the deep split over slavery in the nation.