Complex sentence: He read books like George G.M. James's "Stolen Legacy" (which argued that classical Greek philosophy actually had its roots in ancient Egypt), which convinced Blount that the accomplishments and history of Africans had been systematically suppressed and denied by European cultures.
Split into simpler sentences: He read books such as George G.M. James's "Stolen Legacy" (which argued that classical Greek philosophyhad its roots in ancient Egypt). Blount concluded that the accomplishments and history of Africans had been systematically suppressed and denied by European cultures.