SOURCES – 13 secrets from human history people are dying to find out

The following sources were consulted in the preparation of the article “13 secrets from human history people are dying to find out.”

Associated Press. (2025, July 30). Hoffa legend endures 50 years after ex-Detroit union leader’s disappearance. https://apnews.com/article/b4def2ab0f14e908515f100dc21d972c

Canadian Aviation Museum. (n.d.). Avro Arrow program cancelled—Black Friday, 20-Feb-1959. https://www.canadianaviationmuseum.ca/avro-arrow-program-cancelled-black-friday-20-feb-1959/

Encyclopedia Titanica. (2012) https://www.encyclopedia-titanica.org/2025-us-dollar-book-on-titanic.html

Federal Bureau of Investigation. (n.d.). D.B. Cooper hijacking. U.S. Department of Justice. https://www.fbi.gov/history/cases-and-criminals/db-cooper-hijacking

Federal Bureau of Investigation. (n.d.). Isabella Stewart Gardner Museum heist. U.S. Department of Justice. https://www.fbi.gov/history/cases-and-criminals/isabella-stewart-gardner-museum-heist

Federal Bureau of Investigation. (n.d.). Wall Street bombing 1920. U.S. Department of Justice. https://www.fbi.gov/history/cases-and-criminals/wall-street-bombing-1920

National Archives and Records Administration. (2011, June 15). Watergate: The 18½-minute gap and Haldeman’s notes [Video]. YouTube. https://www.youtube.com/watch?v=IJDX7AFujYs

National Park Service. (2019, September 20). Lewis’s death. U.S. Department of the Interior. https://www.nps.gov/articles/lewis-s-death.htm

U.S. Central Intelligence Agency. (1977, November 6). U.S. agencies suspected missing uranium went to Israel for arms. CIA FOIA.

U.S. Mint. (2002, February 7). 1933 Double Eagle for sale. U.S. Department of the Treasury. https://www.usmint.gov/news/press-releases/20020207-the-united-states-government-to-sell-the-famed-1933-double-eagle-the-most-valuable-gold-coin-in-the-world