There was a whole lot more to Harriet Tubman's life and work than her time as a conductor on the Underground Railroad. During the United States Civil War, she worked as a Union spy, eventually earning the nickname "General."
Most people are familiar with her involvement with the Underground Railroad, but Harriet Tubman was also a spy for the Union during the Civil War, among many other things. Untangling the truth from the myth is the trickiest part of her story.
The Underground Railroad may have saved as much as 100,000 slaves. Tune into to this HowStuffWorks podcast to learn how the passage of the Fugitive Slave Act and a secret network of abolitionists led to the creation of the Underground Railroad.