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TIL of the Dragon's Jaw Bridge, which became a symbol of resistance and legend of invincibility during the Vietnam War, being bombed by US forces 873 times and directly hit by hundreds of bombs and missiles in a span of seven years before finally being destroyed in 1972.

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KOO6w TIL a hypothetical structure called a Matrioshka Brain could have enough computational power to simulate an entire alternate universe.
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16kQ8 TIL about Jacques Tits, a French Mathematician who worked in group theory and incidence geometry, and is famous introducing the Tits buildings, the Tits alternative, the Tits group, and the Tits metric in mathematics.
VPGG TIL that Christopher Robin from Winnie the Pooh was based on the author’s son by the same name who later grew to despise his father for having “climbed on [his] infant shoulders and filched [him] of [his] good name,” through the works.
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