Actor portraying Alexander Graham Bell in a 1932 silent film. Shows Bell's second telephone transmitter (microphone), invented 1876 and first displayed at the Centennial Exposition, Philadelphia. Antonio Meucci, 1849, developed a voice-communication apparatus that several sources credit as the first telephone.[1][2]
^Several Italian encyclopedias claim Meucci as the inventor of the telephone, including: the "Treccani"; the Italian version of Microsoft digital encyclopedia, Encarta; Enciclopedia Italiana di Scienze, Lettere ed Arti (Italian Encyclopedia of Science, Literature and Arts).