Robert J. CottrolROBERT J. COTTROLL is the Harold Paul Green Research Professor of Law and Professor of History and Sociology at the George Washington University. He has lectured extensively on U.S. law at universities in Argentina and Brazil. His books include Th Afro-Yankees: Providence’s Black Community in the Antebellum Era and Brown v. Board of Education: Caste, Culture, and the Constitution (coauthored with Raymond T. Diamond and Leland B. Ware). Read More Read Less