Listen to world?s first recording of Alexander Graham Bell?s voice
Researchers have discovered the world?s first voicemail: an audio recording of Alexander Graham Bell made on April 15, 1885 using a mixture of cardboard and wax. The Smithsonian Magazine has posted the audio recording, in which the inventor of the telephone announces, ?In witness whereof?hear my voice, Alexander Graham Bell. ? Listen to the audio recording [. . . ]
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