How is the information in Domesday book collected?

The information in Domesday Book was collected through a massive survey of England and parts of Wales conducted by order of William the Conqueror in 1085-1086. The survey was carried out by royal commissioners who travelled to each county and collected information from local landowners and peasants. The commissioners recorded information about the ownership, size, and value of every piece of land, as well as the names of the tenants and the services they owed to their lord. In total, the Domesday Book contains information about over 13,000 settlements and more than 280,000 people.

The Domesday Book was compiled for a number of reasons. One reason was to assess the wealth and resources of the kingdom so that William could levy taxes more effectively. Another reason was to establish a record of who owned what land, so that disputes over ownership could be resolved more easily. The Domesday Book was also used to record the obligations of tenants to their lords, and to ensure that these obligations were being fulfilled.

The Domesday Book is a valuable source of information for historians because it provides a unique snapshot of England in the late 11th century. It is a testament to the administrative efficiency of William the Conqueror's government, and it has been used to study a wide range of topics, including social structure, economic history, and landscape change.