the record of a general land census in England undertaken by William I the Conqueror in 1086 (20 years after the Norman Conquest of England in 1066) to determine the crown’s material resources; this was the earliest state census in European history. The Domesday Book was exceptionally complete; data were assembled on the size of patrimonies (manors) and on the distribution between the landowner and the peasant tenants of arable land, livestock, and equipment on the manor, as well as on the number and categories (in property and law) of the various kinds of landowners and tenants. The very fact of determining the legal status of the peasants of England made the Domesday Book a cause for the drastic deterioration of their position and for the spread of serfdom to strata of the peasantry that had previously been free. The name of this census reflects the attitude of contemporaries toward it. The Domesday Book is an extremely valuable source for the socioeconomic history of medieval England.
M. A. BARG