Detail map of Syracuse, New York, United States Overview map of Syracuse, New York, United States

A: Syracuse, New York, United States

Nick Holonyak, Jr. Invents the First Visible LED

1962
photo of Red, blue and green LEDS
Red, Blue and Green LEDS

In 1962, while working as a consulting scientist at General Electric Company in Syracuse, New York, Nick Holonyak Jr. invented the first visible light-emitting-diode (LED). 

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