Many people thought slavery was wrong. Some of these people helped slaves escape. They hid runaway slaves in their homes and helped them get to the next safe place.
How would you help runaway slaves? Where would you hide them?
Detail from "Fugitive Slaves Arriving at the Home of Levi Coffin," by C.W. Jeffreys.
When Harriet Tubman escaped from her owners, she decided she would help others get to freedom. She risked her life many times to help people escape from slavery.