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The first practical incandescent light bulb. Edison and his team of researchers in Edison's laboratory in Menlo Park, N.J., tested more than 3,000 designs for bulbs between 1878 and 1880. In November 1879, Edison filed a patent for an electric lamp with a carbon filament.
i dont now how old he was but his first invention was the phonograph made in 1877
Because Thomas Edison made it PRACTICAL, by discovering a filament that would last more than a few seconds.
One his 80th birthday in 1927 Edison was asked by a reporter what "he" considered to be his greatest invention. His response was - The Research Laboratory.
The light bulb was thomas edison frist invention
It would be rebranded as a new Edison invention.
thomas Edison hated the invention of the movie projecter
Thomas Edison.
Thomas Edison's first great invention was the cell phone hahaha lol jk jk
Thomas Edison worked in his laboratory at Menlo Park, New Jersey.
thomas elva edison
ligtbulb
Invented the lightbulb!
a kangaroo
bulb