The Introduction lays out the past and recent historiography to explain the necessity for this book, emphasizing its focus on parliamentary history (poorly understood and generally ignored over the past fifty years), Afro-Brazilian mobilization (here restored to its primacy in the origins and constitution of the movement), and Rio de Janeiro (cockpit of imperial politics). It also emphasizes the importance of understanding the movement’s history chronologically, as something born of the interactions between itself and parliament, the monarch, and the Afro-Brazilian middle class and masses in Rio over time. Finally, it provides a brief account of the contents of each chapter