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Nalanda School - #history of Inventions Thomas Edison invented light-Bulb in the year 1879. | Facebook
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Who Invented the Lightbulb?
Thomas Edison - Wikipedia
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Light bulb invention THE WAVES Inventions
The Electric Light System - Thomas Edison National Historical Park (U.S. National Park Service)
Thomas Edison's Patent Application for the Light Bulb (1880) | National Archives
The advent of the light bulb – Let there be light! - Stanpro
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Thomas Edison's 140-year-old experimental lightbulb up for auction
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Thomas Edison Invents Light Bulb and Myths About Himself | TIME
From Edison's Light Bulb to the Ball in Times Square | At the Smithsonian| Smithsonian Magazine
Edison invents the light bulb...on this day | Share America
