American inventor best known for inventing the rotary dial on telephones and his contribution to the electromechanical telephone exchange technology. He patented what we know as the Strowger Switch.
Almon Brown Strowger was born on 11 February, 1839
Today's Events: 20 April
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Apollo 16 lands on the moon
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First human organ replacement
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Vitaphone process – add sound to film – announced
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Radium chloride refined by Marie and Pierre Curie
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Secchi disk demonstrated
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Theory of spontaneous generation proven false
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Rare Sun Dog phenomenon observed in Stockholm
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David Filo Birthday
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Slavoljub Eduard Penkala Birthday
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Fred Fish Death Anniversary
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Kathleen Antonelli Death Anniversary
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Rudolph Dirks Death Anniversary
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Giuseppe Peano Death Anniversary
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Karl Ferdinand Braun Death Anniversary
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Bram Stoker Death Anniversary
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Chauncey Jerome Death Anniversary