When was the Domesday book compiled?
The Domesday Book (pronounced "Doomsday") was commissioned by William the Conqueror in December 1085.The first finished copy was completed in August 1086 and contained details of some 13,400 towns, villages and households in England. The purpose of Domesday was to create a record of land ownership and value so William could set his taxes in order to prepare for war with the Danes. The original book has survived and is kept at the Public Records Office at Kew, in London. The Doomsday Book (Alternately known as Domesday, or Book of Winchester) is the record of the 1086 CE great survey of England . It was done for William I of England, AKA 'William the Conqueror'.
Domesday comes from the Old English word "dom" an accounting or reckoning. So Domesday or Doomsday was a Day of Reckoning. What were they checking for? The survey was an attempt to find out what or how much each landholder had in land and livestock, and evaluate its worth. The Reckoning was how much money each household would owe in taxes. The Dutch have this same use of reckoning in their word for a restaurant bill "Rekenen" a summing up.
About the book itself, it was written in Latin spiced up with Old English words for which there was no Latin equivalent. Copies still exist and it is on-line.
Domesday book was compiled by a team of inspectors acting for king William I in 1086, taking only months to gather the information. It was actually two books: Great Domesday, covering 31 counties and Little Domesday, covering only 3 (but in much greater detail). The record was kept secure as an official document in the king's treasury at Winchester; when the treasury was moved to Westminster in the 12th century, the Domesday record went with…
"Domesday" is an old form of the word "Doomsday". The Domesday book was a record of land and resources owned in England in 1085-1086. It was compiled for the purpose of levying taxes. The process was so thorough and invasive that people compared it to how they thought God would collect information for the Last Judgement, or Doomsday. Source: UK National Archives
From the Anglo-Saxon Chronicle, it is known that the planning for the survey was conducted in 1085, and from the colophon of the book it is known that the survey was completed in 1086. It is not known when exactly Domesday Book was compiled, but the entire work appears to have been copied out by one person.