Sir Tony Wrigley is a member and co-founder of the Cambridge Group for the History of Population and Social Structure and a former President of the British Academy. His previous publications include Population and History (1969), People, Cities and Wealth (1987), Continuity, Chance and Change (1988), Poverty, Progress, and Population (2004), and, with R. S. Schofield, The Population History of England 1541–1871 (1981).