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who invented bulb

The 1st light bulb was built by Humphry Davy (an Englishman) in 1809. Thomas Alva Edison improved the invention and based his improvements on a patent he purchased from inventors Henry Woodward & Matthew Evans who patented their bulb in 1875.

Sir Joseph Wilson Swan produced an early electric lightbulb (1860), and in 1880, independently of Thomas Alva Edison, he produced a carbon-filament incandescent electric lamp.

Thomas Alva Edison (February 11, 1847 - October 18, 1931) was an American inventor, scientist and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb.


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