In his recent talk on UNC’s campus, Walker’s central message was that the lack of documentation of homosexual encounters during the slavery era in the U.S. He is also known as a critic of Afrocentrism. Walker, author of “Mongrel Nation: The America Begotten by Thomas Jefferson and Sally Hemmings,” is famous for his broad views of sexuality within the institution of slavery in America. I attended a talk on March 24 by Clarence Walker, a historian at the University of California at Davis, regarding slavery and sexuality in America.