Biography of an abolitionist, first published in 1848. According to Wikipedia: "Henry Highland Garnet (December 23, 1815 – February 13, 1882) was an African American abolitionist and orator. An advocate of militant abolitionism, Garnet was a prominent member of the abolition movement that led against moral suasion toward more political action. Renowned for his skills as a public speaker, he urged blacks to take action and claim their own destinies. Garnet was the first black minister to preach to the United States House of Representatives."