Most people don't know that Harriet Tubman was nicknamed the Black Moses and spent several years in South Carolina or that she was a nurse, spy and scout for the Union Army. Her invaluable work in Beaufort County, South Carolina led to the largest emancipation event of the Civil War, the Combahee River Raid, where around 750 enslaved people were rescued. That's just one more of Tubman's amazing accomplishments that she achieved outside of the work that she did on the Underground Railroad.