While slaves organized rebellions numerous times over the years, one of the most well-known was organized by a Virginia slave named Nat Turner in 1831. Turner and his supporters violently killed dozens of slave owners and their families, and as many as 200 slaves ultimately died. While the rebellion resulted in stricter laws concerning slaves' education and assembly across the American South, many historians consider it a turning point in the slaves' struggle for freedom. (MPI/Archive Photos/Getty Images)