Frederick Douglass was a prominent leader advocating for the abolition of slavery in the 19th century. Born into slavery, Douglass escaped and became a powerful orator, writer, and social reformer. His autobiographies, including "Narrative of the Life of Frederick Douglass, an American Slave," detailed his experiences and served as powerful critiques of the institution of slavery. Douglass was a fervent advocate for civil rights and actively participated in the abolitionist movement, speaking widely to raise awareness and galvanize support for the cause. His efforts helped shape the discourse around race and equality in the United States, making him an iconic figure in American history.