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TIL About the purple Earth hypothesis. It states that the Earth may have been more purple in colour due to retinal being used instead of chlorophyll by the microorganisms in Earth's environmentally harsh past.

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via reddit.com

1aoZr TIL about Henry VIII's "eavesdrop" figures: he has creepy statues built onto ceiling beams to warn against gossip or dissension and foster paranoia
LkEam TIL that tens of thousands of Super Bowl Champion T-shirts, sweatshirts etc. are manufactured for both teams before the game. The loser's merchandise is then shipped overseas to impoverished nations and distributed to families in need.
woZeW TIL In April 2023 the heavy metal band Metallica announced the beginning of an inaugural marching band competition to feature songs from their catalog. Open to both high school and college, $150,000 was given away in cash prizes.
nerG TIL that a 14 year old boy has managed to have over 12 billion trees planted all over the world
woZgY TIL that Ben and Jerry's has a graveyard for discontinued ice cream flavors.