4 апр 1877 г. - Invention of the Phonograph
Описание:
Phonograph was first invented by Thomas Alfa Edison. This tool was used for communication before the telephone was invented. People were amazed by how they can hear a dead man's voice who was thought to be gone forever only by this simple tool.
My own experience: I have never heard of this device every in my entire life and only now learning about it.
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