Harriet Tubman's role in the Underground Railroad was significant in the fight against slavery. As a conductor, she led countless enslaved individuals to freedom, utilizing secret routes and safe houses. Tubman’s bravery and commitment to her cause earned her the nickname "Moses of her people." Her work extended beyond the Underground Railroad; she was also involved in the women's suffrage movement. Tubman's legacy exemplifies courage and leadership, making her a symbol of the struggle for freedom and human rights in American history.