In October 1879, Edison "perfected" the light bulb | Signify Company Website
Light Bulb Manufacturing - Engineering and Technology History Wiki
Edison's light bulb turns 135 | National Museum of American History
IEEE - Humphry Davy created the first electric light in 1802 using a battery he invented. He connected wires to his battery and a piece of carbon, the carbon glowed, producing light.
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The Electric Light System - Thomas Edison National Historical Park (U.S. National Park Service)
Meet Lewis Latimer, who made the light bulb longer lasting | Michael Coard - Pennsylvania Capital-Star
Remember the Light Bulb? LEDs are Sending the Bulb's Classic Shape the Way of the LP | GE News
History of the First Lightbulb | Who Invented the Lightbulb?
history of the light bulb, who invented the light bulb | DelMarFans.com
BBC - A History of the World - Object : One of the First Electric Light Bulbs
Thomas Edison and the 110-Volt Light Bulb - News about Energy Storage, Batteries, Climate Change and the Environment
Bulb Still Burning After 100-Plus Years as GE Brings Business Back to US - ABC News
First Electric Bulbs by Thomas Edison - YouTube
Edison's Lightbulb | The Franklin Institute
The History of the Light Bulb | Department of Energy
Incandescent light bulb - Wikipedia
History of the lightbulb from incandescent to compact fluorescent
Thomas Edison's Patent Application for the Light Bulb (1880) | National Archives
early lightbulb - Kids | Britannica Kids | Homework Help
The L.E.D. Quandary: Why There's No Such Thing as “Built to Last” | The New Yorker
Centennial Light - Wikipedia
The History of Incandescent Light Bulbs – BulbAmerica
Edison Light Bulb | Smithsonian Institution
