The following sources were consulted in the preparation of the article “14 unsettling historical facts, even for the nerds.”
- Walls made of human bones discovered under Ghent cathedral
- Final Solutions: Murderous Racial Hygiene, 1939–1945
- History of polio vaccination
- Calm, Cool, Courageous: Nursing and the 1918 Influenza Pandemic
- The match girls’ strike of 1888
- Overview of the Sand Creek Massacre
- Oxford academics used cup made from human skull at formal dinners until 2015
- A statement on Des destinées de l’âme and its stewardship
- New evidence of an Iron Age hillfort at war
- The Mummified Monk
- Human skin with various tattoos.
- ‘The darker angels of our nature’: Early Bronze Age butchered human remains from Charterhouse Warren, Somerset, UK