What was an action taken by Harriet Tubman that made her a national hero?
○ She authored a widely read novel that criticized the system of enslavement in the United States.
She was the first African American woman to join the U.S. Army during the Civil War.
She directed the effort to enact the Thirteenth Amendment and end enslavement in the United State
She helped hundreds of people who were enslaved flee to freedom in the North.