Harriet Tubman was born into slavery around 1822. She was treated very badly.
In 1849, she escaped and ran away after her master died. She was now free to live her life in peace.
However, she could not leave her family and friends behind. Over the next 11 years, she returned to the Southern States 13 times and rescued about 70 slaves.
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She used the Underground Railroad to help people escape. Some people would get scared and want to go back. She pointed her gun at them and said that they should go on or die. This meant no one could find out about the route.
In 1861, the American Civil War broke out. Tubman worked as a nurse and spy for the Northern States. She was the first women to lead a military raid in the Civil War. She also freed around 700 slaves.
In 1863, slavery was abolished. For a long time after, Harriet raised money for hospitals and school even though she was very poor. When African American men gained the vote in 1869, she fought for women to get the vote. She died in 1913, aged 91, 7 years before women gained the vote in America.