1856
Thomas Edison invented the phonograph in 1877.
in 1878
Thomas Edison invented the lightbulb in 1879.
he didn't
in 1880
In 1891, of course!
He invented the electric light in 1880
Edison invented the minor's safety lamp in the year 1914.
He did it in the 1880s because the sound quality of the first model was quite poor.
1900 - 1910 Invented and perfected the steel alkaline storage battery and made it a commercial success.1902-1903 Worked on improving the Edison Primary Battery. Continued to invent improvements to his phonograph - his favorite invention - and associated cylinders.
Around 1880
The process sound recording on a tin wrapped cylinder was invented in 1877