"Harriet Tubman was an African-American abolitionist, humanitarian, and, during the American Civil War, a Union spy. Born into slavery, Tubman escaped and subsequently made some thirteen missions to rescue approximately seventy enslaved family and friends, using the network of antislavery activists and safe houses known as the Underground Railroad. She later helped abolitionist John Brown recruit men for his raid on Harpers Ferry, and in the post-war era struggled for women's suffrage." -Taken from Wikipedia
One good example would be that Harriet Tubman rebelled against slavery.
What was Harriet Tubman rebelling against?
2 answers
http://www.biography.com/people/harriet-tubman-9511430