Historians judge Harriet Tubman as having a huge impact on the quest for freedom before the Civil war.
Harriet Tubman is remembered for her help in ensuring the freedom of a lot of black slaves.
She also aided the Union through the efforts that she put in during the civil war to ensure that the Union won the war and freed the Black people that were help as slaves by the Southerners.
She is said to have helped to free over 300 slaves while on 19 trips.
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