The advent of the light bulb – Let there be light! - Stanpro
In October 1879, Edison "perfected" the light bulb | Signify Company Website
History of Incandescent light bulb - Timeline - Historydraft
Great Influencers in Energy: Thomas Edison may not have invented the light bulb; but where would it (or we) be without him. - Opinion Dynamics
The advent of the light bulb – Let there be light! - Stanpro
Edison invents the light bulb...on this day | Share America
Incandescent lamp | Definition, Inventor, Types, Examples, & Facts | Britannica
History of Light Bulbs for Home Lighting | Edison lighting, Bulb, Light bulb
G.E.'s History of Innovation - The New York Times
Edison's Lightbulb | The Franklin Institute
LED Bulb - Lighting History, LED History | TCP Lighting
Light Bulb Invention: (The Complete History) - Science4Fun
The History of the Light Bulb | Department of Energy
Thomas Edison - Wikipedia
Who Invented The Lightbulb? The Story Of The First Incandescent Bulb
Edison Light Bulb | Smithsonian Institution
November 4, 1879: Thomas Edison Invents the Electric Light, Files Patent - Constituting America
Thomas Edison's Patent Application for the Light Bulb (1880) | National Archives
Edison's light bulb turns 135 | National Museum of American History
Light Bulb Invention | Light Bulb Facts | DK Find Out
History of the First Lightbulb | Who Invented the Lightbulb?
About the invention of the light bulb - and who it really was SEGULA GmbH
Electric light - Wikipedia
The Electric Light System - Thomas Edison National Historical Park (U.S. National Park Service)
