By Fred I.A. Omu
By Karl Maier
By Mike McGovern
By Schmidt
By Joseph Hellweg
By Arnold Hughes, David Perfect
By Larry W. Yarak (Assistant Professor of History, Assistant Professor of History, Texas A & M University)
By Francois Manchuelle, Martin A. Klein
By B. Marie Perinbam, B Marie Perinbam
By D. K. Fieldhouse (Emeritus Professor and Emeritus Fellow, Emeritus Professor and Emeritus Fellow, Jesus College, Cambridge)
By John Parker
By Richard Rathbone
By Ivor Wilks
By Martin Lynn (Queen's University Belfast)
By Jean Marie Allman
By Tunde Zack-Williams (University of Central Lancashire)
By Stephen J. Braidwood
By Jeremy Black
By Peter Mark (Wesleyan University, Connecticut), Jose da Silva Horta (Universidade de Lisboa)
By John Kent (Lecturer in International History, Lecturer in International History, London School of Economics and Political Science)
By James F. Searing
By John D. Hargreaves
By M.C. Atkinson
By Hollis R. Lynch
By P. Valsecchi
By M. Mustapha, J. Bangura
By M. Salau
By V. HA (c)lA (c)non, Kenneth A. Loparo
By Michael J. Watts
By Michael Gomez