William Albert Sinclair, born a slave in 1858, grew up in South Carolina during the tumultuous years of the Civil War and Reconstruction. Influenced by his childhood experiences, Sinclair spent his life fighting for the rights of African Americans and was an active member of the Constitution League, and their successor, the National Association for the Advancement of Colored People. Inspired by the scholarship and activism of T. Thomas Fortune and W. E. B. Du Bois, Sinclair published The Aftermath of Slavery: A Study of the Condition and Environment of the American Negro, one of the most...