Sarah Grimke is famous for being an abolitionist and fighting for women's' rights. She and her sister Angelina Grimke where some of the 1st few women to speak out in public and lecture about slavery and women's rights. Sarah Grimke wrote a book called the Letters on the Equality of the Sexes and the Condition of Women. She spoke out in front of mixed groups, men and women, and that was a first. Her and her sister made a great team together. It doesn't seem like a big deal to us now, but back in the day, it was a huge deal, to speak your beliefs out for everyone to hear!