During the Civil War, Harriet Tubman was a nurse and spy, and the mastermind behind the first major military operation in American history planned and executed by a woman—one that freed over 700 people. 

Explore this documentary film clip and engage students in historical thinking using the Library of Congress Primary Source Analysis Tool. In this inquiry-based resource for Harriet Tubman: Visions of Freedom, students view a video clip examining how Harriet Tubman used her knowledge of Maryland as a border state to influence decisions that impacted the Civil War, analyze primary source photographs and maps from the era, and consider discussion prompts for more dialogue and deeper reflection.