The Domesday Book sounds ominous, but it was actually a data gathering project that was compiled in the 11th century at the behest of William the Conqueror. 

Research:

• Barlow, Frank. "William I". Encyclopedia Britannica, 13 May. 2024, https://www.britannica.com/biography/William-I-king-of-England
• Baxter, Stephen. “Getting Domesday done: a new interpretation of William the Conqueror’s survey.” Oxford University Press Blog. Feb. 12, 2021. https://blog.oup.com/2021/02/getting-domesday-done-a-new-interpretation-of-william-the-conquerors-survey/
• Baxter, Stephen. “How and Why Was Domesday Made?” The English Historical Review, Volume 135, Issue 576, October 2020, Pages 1085–1131, https://doi.org/10.1093/ehr/ceaa310
• Britannica, The Editors of Encyclopaedia. "Domesday Book". Encyclopedia Britannica, 15 Jul. 2024, https://www.britannica.com/topic/Domesday-Book
• Britannica, The Editors of Encyclopaedia. "Harold II". Encyclopedia Britannica, 29 May. 2024, https://www.britannica.com/biography/Harold-II
• Cartwright, Mark. "Domesday Book." World History Encyclopedia. Last modified November 19, 2018. https://www.worldhistory.org/Domesday_Book/
• Cellan-Jones, Rory. “The Domesday Reloaded Project – The 1086 Version.” BBC News. May 13, 2011. https://www.bbc.com/news/technology-13395454
• “The Domesday Book.” Historic UK. https://www.historic-uk.com/HistoryUK/HistoryofEngland/Domesday-Book/
• “The Domesday Book Online.” https://www.domesdaybook.co.uk/index.html
• Domesday Reloaded. https://webarchive.nationalarchives.gov.uk/ukgwa/20120919052725/http://www.bbc.co.uk/history/domesday
• Domesday Reloaded Blog. https://www.bbc.co.uk/blogs/domesday
• “Hull Domesday Project.” https://www.domesdaybook.net/home
• McDonald, John, and G. D. Snooks. “Statistical Analysis of Domesday Book (1086).” Journal of the Royal Statistical Society. Series A (General), vol. 148, no. 2, 1985, pp. 147–60. JSTOR, https://doi.org/10.2307/2981946
• “New insights from original Domesday survey revealed.” University of Oxford, News and Events. Jan. 12, 2021. https://www.ox.ac.uk/news/2021-01-12-new-insights-original-domesday-survey-revealed
• Open Domesday. https://opendomesday.org/
• Sally P. J. Harvey. “Domesday Book and Anglo-Norman Governance.” Transactions of the Royal Historical Society, vol. 25, 1975, pp. 175–93. JSTOR, https://doi.org/10.2307/3679092
• Thomas, Hugh M. “The Significance and Fate of the Native English Landholders of 1086.” The English Historical Review, Volume 118, Issue 476, April 2003, Pages 303–333, https://doi.org/10.1093/ehr/118.476.303
• Wood, Michael. “Domesday: A Search for the Roots of England.” Facts on File. 1988.