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TIL that bumblebees can fly higher than Mount Everest. It’s difficult for most insects and birds to fly at extremely high altitudes where the air is thin and oxygen is scarce but researchers were able to track some bumblebees that were able to fly at more than 9000 metres.

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rmxy TIL that in 1979, a number of people called in sick with a case of “being homosexual,” in protest of homosexuality being classified as an illness. Within a few months, Sweden joined the few other countries in the world at the time to de-classify homosexuality as an illness.
b9eyp TIL the bell on early cash registers (circa 1884), not marketing, is why prices like $1.99 rather than $2.00 exist. The 1¢ change back to the customer forced the cashier to open the till, ringing the bell, and make change. Otherwise the sale could more easily be pocketed by the clerk.
OoQZa TIL that a 2014 study found that Calvin, of 'Calvin and Hobbes', caused nearly $16,000 in property damage throughout the strip's 10-year run.
e0LZE TIL that Emily Edith Smith believed she encountered Jack the Ripper in November 1892 (four years after his final victim). The girl was attacked by a strange man with a knife in Whitechapel. Smith kicked him in the groin and fled, and his description fit the Ripper's profile, but the trail went cold.
MejEB TIL : There is a method to cut a cake between 3 people where everyone "thinks" they got the best slice. Because of that, this method is called envy free cutting. Same method can be generalized for any number of people, but its gets complicated.