Harriet Tubman was an African American abolitionist and political activist who was born into slavery. She became famous for her role in the Underground Railroad, a secret network of safe houses and routes used to help enslaved people escape to freedom in the northern states and Canada. Tubman risked her life many times to lead hundreds of enslaved individuals to freedom, earning her the nickname "Moses of her people." She also served as a scout, spy, and nurse for the Union Army during the American Civil War. After the war, Tubman continued her activism for women's suffrage and the rights of African Americans. She is remembered as a courageous and inspirational figure in American history.