On August 12, 1877, Edison completed the phonograph, when he told the public what this creation did, no one believed him. It was only when he performed a demonstration to prove that his creation worked that people stopped criticizing him, he uttered "Mary had a little lamb" in the machine and, to the amazement of the audience, the machine responded to him. Now, even though the phonograph seemed like a new and unique invention, it was actually the result of two different inventions that Thomas Edison had in the works. The phonograph was created when Edison decided to combine the telegraph and the telephone. When the Telegraph was created it was realized that a phonograph could use the same technique to transmit a message, but this time with sounds instead of words. The phonograph worked much like the Telegraph, when you spoke into the mouthpiece of the phonograph it vibrated two needles which made indentations in the metal inside the cylinder, and then the second needle was used to read the indentations placed in the metal and play it back. Edison opened and founded the Edison Talking Phonograph Company. Edison recommended several uses of the phonograph, for example, letters and correspondence, phonograph books for blind people, family documents (recording relatives in