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TIL Avocado seed can “bleed” red if its outer surface is removed/broken due to high concentration of tannin being oxidized. Additionally, Tannin is a class of biomolecules that historically been used as an ink in its liquid form.

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jdNX TIL a marketer for Kraft Foods rotated their square Shreddies cereal 45 degrees, and re-marketed them as the new “Diamond Shreddies”. The new product showed a large increase in sales and test groups even reported a difference in flavor.
PYGwO TIL that insider trading has only been illegal in Japan since 1988, and even today many Japanese don't understand why it's a crime since it was formerly regarded as common sense.
vPV1D TIL Ever since she was 12, Ellen Degeneres' idol has been Dian Fossey after seeing her hold a gorilla in 1970 National Geographic. Fifty years later, Ellen set up the $15 million "Ellen DeGeneres Campus" at Virunga Massif for gorilla conservation and research
Z19D TIL that shipping is the most important industry in Greece. Greek shipping companies control the world’s largest merchant fleet of over 5000 ships including, among others, 1/3 of world’s tankers and ¼ of all bulk carriers by tonnage. Greek flag is the first-most-used internationally for shipping.
69w6l TIL that during the Serbian Campaign of World War 1, the German General August Von Mackensen grew to respect the Serbian defenders so much that he had a monument erected in the middle of Belgrade for his opponents, saying, "We fought against an army that we have heard about only in fairy tales."