Harriet Tubman is a great icon
Harriet Tubman (1822-1913)
Tubman escaped from slavery when she was 29 years old and spent the rest of her life dedicated to helping others escape too using abolitionist friends and the Underground Railroad to facilitate slaves' journey to freedom. During the Civil War she was even a spy for the North. After the war, and later in life, she focused her advocacy on women's suffrage.