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TIL that around the year 1500, Leonardo da Vinci designed a robot

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J1Ej TIL that the “root” in Root Beer is from the sassafras tree, the same main ingredient in Ecstasy.
NlNQ TIL mad after being woken from having a fly swat on him, Woo Bum-kon began a massive killing spree. Woo went village to village shooting/grenading people (outside and in their houses) & took 3 hostages. At one point he killed a family of 12 after being invited for dinner. 56 killed & 35 injured.
9wxjm TIL: Prior to 2005, Catholic cardinals participating in papal conclaves were housed in the Apostolic Palace, sleeping on cots in makeshift bedrooms in hallways or offices. Pope John II changed the rules for future conclaves, allowing participants to room in a nearby guest house.
vPLe7 TIL That Christmas Tree Tinsel was originally made from Sliver, but because sliver tarnishes quickly, many people decorated their trees with Lead Tinsel. This practice continued into the 1960s.
6EBWY TIL That Chinese Tourists got so bad the government stepped in and published a How to Guide in order to avoid embarrassment. One of the tips was "Don’t spit phlegm or gum, throw litter, urinate or defecate wherever you feel like it."