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TIL The sound made by the Krakatoa volcanic eruption in 1883 was so loud it ruptured eardrums of people 40 miles away, travelled around the world four times, and was heard from over 3000 miles away.

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kJV45 TIL: Penn Badgley, star of Gossip Girl and You, voice acted in two Mario games for the Nintendo 64 (Mario Golf and Mario Tennis)
O84Y TIL holding a sword by the blade and using the hilt as a bludgeon was a technique called the “murder strike” in German fencing.
a8vM0 TIL a Victorian undertaker inadvertently launched the first Low Carb diet craze
XEAZX TIL of The rule of Threes. You can survive three minutes of severe bleeding, without breathable air (unconsciousness generally occurs), or in icy water. You can survive three hours in extreme heat or cold. You can survive three days without drinkable water. You can survive three weeks without food.
grZ1y TIL The people giving out free samples at Costco do not work for Costco but a separate company