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TIL that rabbits weren’t domesticated until the 7th century AD, and that the reason they were domesticated is that the Catholic church ruled that fetal rabbits were a type of fish and therefore OK to eat during Lent.

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4X8ea TIL that the huge Lake Kivu is one of three lakes known to have limnic eruptions, natural disasters that create CO2 gas clouds that wipe out life in the area. It takes place every 1000 years or so and 2 million people now live in the vicinity.
BrLkd TIL A denarius is an ancient Roman coin made of silver and a common day's pay for unskilled labor was equal to one denarius. Over its approximate 400 years of being issued, the denarius lost much of his purchasing power due to inflation
Qx4X TIL a London borough has invented a public bench that perfectly repels graffiti, skateboarders, litter, rough sleepers and even rain. [seen in r/London]
mx10o TIL that the right way of putting on a toilet seat cover is the complete opposite of how i always thought it was supposed to be placed, and it now functions without any splash whatsoever.
KODa9 TIL about YInMn Blue, the first non-organic shade of blue discovered in over 200 years. It was discovered partly by accident by Mas Subramanian, who is now looking for a similar non-toxic bright-red pigment.