For a different statement see the following: "The recently attempted invasion from Denmark seems to have impressed the king with the desirability of· an accurate knowledge of his resources, military and fiscal, both of which were based upon the land. The survey was completed in the remarkably short space of a single year [1085-1086]. In each shire the commissioners made their inquiries by the oaths of the sheriffs, the barons and their Norman retainers, the parish priests, the reeves and six ceorls of each township. {795} The result of their labours was a minute description of all the lands of the kingdom, with the exception of the four northern counties of Northumberland, Cumberland, Westmoreland and Durham, and part of what is now Lancashire. It enumerates the tenants-in-chief, under tenants, freeholders, villeins, and serfs, describes the nature and obligations of the tenures, the value in the time of King Eadward, at the conquest, and at the date of the survey, and, which gives the key to the whole inquiry, informs the king whether any advance in the valuation could be made. ... The returns were transmitted to Winchester, digested, and recorded in two volumes which have descended to posterity under the name of Domesday Book. The name itself is probably derived from Domus Dei, the appellation of a chapel or vault of the cathedral at Winchester in which the survey was at first deposited." _T. P. Taswell-Langmead, English Constitutional History, chapter 2._ "Of the motives which induced the Conqueror and his council to undertake the Survey we have very little reliable information, and much that has been written on the subject savours more of a deduction from the result than of a knowledge of the immediate facts. We have the statement from the Chartulary of St. Mary's, Worcester, of the appointment of the Commissioners by the king himself to make the Survey. We have also the heading of the 'Inquisitio Eliensis' which purports to give, and probably does truly give, the items of the articles of inquiry, which sets forth as follows: I. What is the manor called? II. Who held it in the time of King Edward? III. Who now holds it? IV. How many hides? V. What teams are there in demesne? VI. What teams of the men? VII. What villans? VIII. What cottagers? IX. What bondmen? X. What freemen and what sokemen? XI. What woods? XII. What meadow? XIII. What pastures? XIV. What mills? XV. What fisheries? XVI. What is added or taken away? XVII. What the whole was worth together, and what now? XVIII. How much each freeman or sokeman had or has?