The Cambridge Group for the History of Population and Social StructureJim Oeppen
Campop’s estimated series of population totals for England from 1541 to 1871 are the longest and most detailed available for any country. The associated age-structures have been used to provide summary measures of fertility and mortality, such as replacement rates and life expectancy. The opportunity they present for extending per capita analysis into the past means that they have become a standard reference for historical demography and economic history, and have been cited in over 1,500 academic publications.