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Harriet led what was famously known as the underground railroad which helped slaves escape their owners and become free. She was able to free hundreds of slaves using the underground railroad.

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He was a black man that was born free, but he experienced the cruelty of slavery in his childhood. When he was older he joined the Massachusetts General Colored Association. This was a group that spoke about anti-slavery to the towns people.

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He wrote an anti-slavery newspaper for the rest of his life until the slaves were freed. He organized the first anti-slavery society in New England. At the start he wanted a government that forbid slavery. His newspaper, called the Liberator, brought a lot of awareness to slavery.

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She was a novelist who wrote Uncle Tom's Cabin. This was a very influential book on the topic of slavery. She sold more than 500,000 copies within four years. This really helped spread awareness to the ending of slavery.