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TIL that in 1994, a 17-year-old boy scout named David Hahn attempted to build a nuclear reactor in a backyard shed at his mother's house in Commerce Township, Michigan. The experiment emitted measurable radiation and the EPA eventually declared the property a Superfund cleanup site.

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WkK74 TIL that dogs can detect oncoming seizures/epileptic fits by smelling the odour molecules released by the human body before a seizure/fit occurs
m1kMR TIL that German philosopher Reiner Schürmann, at first destined to be a Dominican priest, withdrew from priesthood paths after studying under Martin Heidegger, developed the concept of an "anarchy principle" toward being and acting meant to truly overcome metaphysics, and died of AIDS complications
oRn47 TIL about Venture Smith, the son of a West African prince. Kidnapped and became an American slave until he purchased his and his family's freedom and went on to become a wealthy property owner in the late 1770's
gdmD TIL humans can have black irises, and red is the most rare of eye colors.
1KD7 TIL In A.D. 350, Pope Julius I, bishop of Rome, proclaimed December 25 the official celebration date for the birthday of Christ.