When people name the most important inventions in history, light bulbs are usually on the list. They were much safer than earlier light sources, and they made more activities, for both work and play, ...

Edison Light Bulb, 1879, Smithsonian's National Museum of American History Thomas Edison used this carbon-filament bulb in the first public demonstration of his most famous invention—the light bulb, ...

Inventor Thomas Edison demonstrated his electric incandescent lights in public. He illuminated about 100 bulbs in and around his laboratory in Menlo Park, New Jersey. Edison used a carbonized bamboo ...