19 February 1878 – Thomas Edison patented the phon | Englis

"19 February 1878 – Thomas Edison patented the phonograph. 19 February 1941 – David Jonathan Gross an American theoretical physicist, string theorist, and Nobel Prize Laureate, was born ©bps "

19 February 1878 – Thomas Edison patented the phonograph. 19 February 1941 – David Jonathan Gross an American theoretical physicist, string theorist, and Nobel Prize Laureate, was born ©bps

19th February

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