The World We Have Lost: England Before the Industrial Age By Peter Laslett

Peter Laslett CBE FBA (18 December 1915 – 8 November 2001) was an English historian.

Laslett took up an entirely different line of historical research from the early 1960s. Trying to understand 17th-century listings of the inhabitants of Clayworth and Cogenhoe, Northamptonshire, he became persuaded of the need to pursue historical demography more systematically. In 1964, Laslett and Tony Wrigley co-founded the Cambridge Group for the History of Population and Social Structure. With funding from the Social Science Research Council, the Cambridge Group worked alongside amateur volunteers on local records, and established the journal Local Population Studies.

https://en.wikipedia.org/wiki/Peter_Laslett

• The World We Have Lost: England Before the Industrial Age (London, 1965; New York, 1966; 2nd ed., 1971, 3rd ed., 1984; re-issued and updated 2000)^[4]