Harriet Tubman's life is significant because it stands as a testament to incredible courage in the face of evil.
Once she had escaped slavery herself, Tubman looked for ways she could help others. She was steadfast in her resolution and unwavering in her resolve. Unwilling to simply enjoy her newfound freedom, Tubman returned again and again to help others gain their own freedom by providing a path to the North via the Underground Railroad. This, of course, meant that she placed herself in direct opposition to the wealthy and powerful slave owners of the South, and they collectively put a price on her head, hoping that the sum would be enough to persuade poor Southern citizens to find her. Eventually, a $40,000 reward was posted for her death or capture, which would be worth over $600,000 today. Surely there were many Southerners looking for Tubman. Not only was she never captured, but she also never lost a "passenger" while leading people to freedom.
It is also important to note that Tubman was more than just a conductor on this Underground Railroad and continued looking for ways to serve others. She served as a nurse, caring for both black and white soldiers. She served as a spy for the Union army, gathering needed intelligence for their strategies. She disguised herself and walked around in Confederate towns, helping slaves locate employment and food in the North. She joined the quest for women's rights alongside Elizabeth Cady Stanton and Susan B. Anthony. She adopted a daughter, and she used her own home to care for the elderly.
Tubman's life shows the impact one individual can have when she is relentless about creating hope in situations of injustice. She served people in tangible ways, using her talents to make a definite impact on her world. We remember her because she was unstoppable in her quest to change the injustice around her. Tubman is a legacy because she shows the power that one fiercely-determined woman can have.