In October 1879, Edison "perfected" the light bulb | Signify Company Website
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No, a Black man didn't invent the light bulb. But Lewis Latimer made it better | CNN
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Edison invents the light bulb...on this day | Share America
The History of the Light Bulb | Department of Energy
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History of the First Lightbulb | Who Invented the Lightbulb?
