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TIL the Demon core, a fissile core that went supercritical twice in the 1940s causing the deaths of Harry Daghlian and Louis Slotin.

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m1GxR TIL Peru has so many convicted ex-presidents it has set up a special prison for them.
lvpV TIL the difference in time between when the Tyrannosaurus Rex and Stegosaurus lived is greater than the difference in time between Tyrannosaurus Rex and now
xox0 TIL that in 1947, the FBI issued a memo about “It’s a Wonderful Life” stating that it was communist propaganda and that the “picture deliberately maligned the upper class, attempting to show the people who had money were mean and despicable characters.”
PLLO TIL Joseph Stalin’s son Yakov, shot himself because of Stalin’s harshness toward him, but survived. Afterwards, Stalin said “He can’t even shoot straight”
1aY44 TIL Most libraries & large book collections have industrial freezers. Freezing inhibits mold growth, gives time to save others & makes for easier cleaning.