We know Harriet Tubman as the conductor of the Underground Railroad.
Less known: she was also a Civil War spy and the first woman in U.S. history to lead an armed military raid — freeing more than 750 people from slavery.
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Harriet Tubman led military raids during the Civil War as well as her better-known slave rescues
Harriet Tubman has long been known as a conductor on the Underground Railroad leading enslaved Black people to freedom. Less known is her role as a Union spy during the Civil War.