In October 1879, Edison "perfected" the light bulb | Signify Company Website
Edison's Lightbulb | The Franklin Institute
Great Influencers in Energy: Thomas Edison may not have invented the light bulb; but where would it (or we) be without him. - Opinion Dynamics
Light Bulb | Highbrow
History of the Light Bulb | Lighting Basics | Bulbs.com
Thomas Edison Lights the Way – NTC's Professional Educators Network
Education of Thomas Alva Edison & Interesting Facts - Leverage Edu
Edison's light bulb turns 135 | National Museum of American History
6 Key Inventions by Thomas Edison
Edison Light Bulb | Smithsonian Institution
Invention of the Light Bulb - HISTORY CRUNCH - History Articles, Biographies, Infographics, Resources and More
1,093 Light Bulb Moments: The Many Inventions From The Wizard of Menlo Park | GE News
ComEd on Twitter: "While many believe Thomas Edison invented the light bulb, this moment in High-Voltage #History tells the true tale! https://t.co/5vAcdUppEH" / Twitter