Frederick Douglass (b. 1818–d. 1895), one of the most eminent African Americans of the 19th century, defies categorization. Possessing a ranging intellect, he first rose to prominence as the self-emancipated slave who forcefully indicted the institution as an orator, writer, and newspaper editor. Not content simply to bear witness about his first twenty years under slavery, he exposed national hypocrisy on race where it appeared in religion, science, segregation, voter disfranchisement, and freedom of association. Through the rhetoric of his autobiographies, editorials, and lectures, he advanced to the forefront of the multifaceted antislavery movement as it became a driving force behind national politics in the 1850s. The 1860s and 1870s saw him demanding emancipation, goading President Abraham Lincoln on the subject, but also fighting for black citizenship and universal suffrage. In the latter half of his life, he worked through the political system that he once opposed in order to secure equal protections and opportunities for African Americans, usually to frustrating ends. He continued to absorb and explore the boundaries of race, condemning cant, protesting injustice, and using his fame to amplify disfranchised voices. After his death, his widow, Helen, preserved his papers and home, now the Frederick Douglass Papers in the Library of Congress and the Frederick Douglass National Historic Park, which have allowed his legacy to rise above those of his contemporaries. Douglass’s interests concentrated on questions of identity, justice, race, and national belonging that were both universal and specific to the 19th-century United States. Study of his work and life straddles multiple disciplines. Initially, he was remembered for his oratory while his autobiographies served as historical texts describing slavery and outlining his life. Toward the end of the 20th century, the expanding availability of documents at the Library of Congress and the University of Rochester, the publication of Philip Foner’s The Life and Writings of Frederick Douglass, John Blassingame’s Frederick Douglass Papers Project, and new methods of historical and literary study opened new avenues into his world. Scholars working in one field borrow from others, but distinctions still exist in which historians use multiple types of documents to understand Douglass in his time, literary scholars analyze his texts, and political scientists examine his work among American political traditions. All reveal many facets of a man of infinite curiosity and continuing relevance.