By Prof David Killingray, Martin Plaut
By Unesco, Niane, D.T.
By Karin Barber (University of Birmingham)
By James L. Newman
By Jeff Pearce
By Asmarom Legesse
By Michael Bratton (Michigan State University), Nicholas van de Walle (Michigan State University)
By Patrizia Palumbo, angelo del Boca, giulia barrera, Barbara Sorgoni, Nicola Labanca
By Stuart Laing
By Ivan Karp, Charles S. Bird
By Luc de Heusch
By Bill Berkeley
By Patrick Manning (Professor, University of Pittsburgh)
By Erik T. Gilbert, Jonathan T. Reynolds
By Michael A. Gomez (New York University)
By Isidore Okpewho, Carole Boyce Davies, Ali A. Mazrui
By George Clement Bond, Nigel C. Gibson
By Northrup
By Elizabeth Hodgkin
By Lawrence James
By Dennis Austin
By Grace Stuart Ibingira
By Judith A. Byfield (Cornell University, New York), Carolyn A. Brown, Timothy Parsons (Washington University, St Louis), Ahmad Alawad Sikainga (Ohio State University)
By J. Desmond Clark
By Unesco, Ki-Zerbo, J.
By Unesco, Mokhtar, G.
By John E. Flint
By Roland Oliver, G. N. Sanderson
By Michael Crowder
By Richard Gray