› added 11 months ago

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TIL that the author of the thriller The Four Just Men offered a £500 prize to whoever guessed the killer's name, but forgot to state there would only be one winner. The book became a bestseller but bankrupted him, as he was legally bound to pay every reader who answered correctly.

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4koao TIL almost 75 percent of the refrigeration and air conditioning sector can be converted to natural refrigerants, such as ammonia
9lLp TIL In the Middle Ages, men who wanted a boy sometimes had their left testicle removed because it was believed that the right testicle made “boy” sperm and the left made “girl” sperm.
KrJ4 TIL atheism was banned within the Nazi SS. All SS men were required to list themselves as Protestant, Catholic or “believer in God”.
GYRW1 TIL the world's first emergency phone number was launched in London in 1937. It initially only covered a radius of 12 miles. The 999 number was chosen due to the ease of dialing it on phones at that time.
VM6xZ TIL A man named Ronald MacDonald robbed a Wendy’s in 2005.