With the completion of the 
                      Phonograph at Edison's Menlo Park Laboratory on December 
                      6, 1877 the idea that sound was fundamentally ephemeral was essentially redefined.  Edison had 
                      captured his spoken words and then played them back, word for word.  
                      
                    In 1857  
                      Edouard-Léon Scott de Martinville had recorded 
                      sound with his Phonautograph, however, Scott did not conceive 
                      or design his machine to speak back the recordings. (2) 
                      
                     Likewise, French poet and 
                      inventor Charles 
                      Cros had described his concept of such an invention 
                      that he intended to name the Paleophone (voix du passe). 
                      Cros submitted his concept in a sealed envelope to the French 
                      Academy on April 30, 1877 but it was not read in public 
                      until December 3, 1877. Cros never built a successful working 
                      model of his Paleophone. 
                    The first public demonstration 
                      of a machine that recorded the human voice and played it 
                      back was Edison's Phonograph at the office of Scientific 
                      American in New York City on December 7, 1877. That 
                      demonstration resulted in the publication of "The 
                      Talking Phonograph," an article which explained 
                      how the phonograph worked but also included the writer's 
                      reaction to a machine that was changing the perception of 
                      ephemeral sound. "It is impossible to listen to 
                      the mechanical speech without his experiencing the idea 
                      that his senses are deceiving him." 
                    The revolution of recorded 
                      sound in popular culture had officially begun. Its evolution 
                      continues in the 21st century.