14 August 1888

On 14 August 1888, "Thomas Edison sent his "Perfected" Phonograph to Mr. George Gouraud in London, England, and on August 14, 1888, Gouraud introduced the phonograph to London in a press conference, including the playing of a piano and cornet recording of Sullivan's "The Lost Chord," one of the first recordings of music ever made." [Copied and pasted directly from Wikipedia]