Harriet TubmanAfter her escape from slavery in 1849, Harriet Tubman defiantly reentered the slave-holding south approximately 19 times to lead more than 300 men, women, and children, to freedom in the North and Canada. During the Civil War, Tubman served the North's Union Army as a nurse, scout, and spy, and in her later years, founded a home for older, impoverished black people. Because of her daring and courage, Tubman became known as the "Moses" of her people.