Ole J. Benedictow, Cand. Philol. in History (1961), University of Oslo, Emeritus Professor of History at the University of Oslo. He has published extensively on historical plague epidemics and medieval demography including The Black Death 1346-1353. The Complete History (Boydell&Brewer 2004), The Black Death and Later Plague Epidemics in Norway (in Norwegian, Unipub 2002), and The Medieval Demographic System of the Nordic Countries (Middelalderforlaget, 2nd ed. 1996).