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TIL Benjamin Franklin invented an instrument called the Glass Armonica. A musician powered a foot pedal to rotate 36 concentric glass bowls and produced notes by putting wet fingers to the spinning glass.

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w958 TIL sporting goods company Wilson was started in 1913 as a way to use animal by-products from New York slaughterhouses. Its first products were strings for tennis rackets and violins
WkpPY TIL Before 'Cat in the Hat,' Dr. Seuss drew cartoons to fight America First, racism and fascism
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