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jan 1, 1877 - The Phonograph

Description:

The first phonograph was invented in 1877 at the Menlo Park lab. It was an instrument for reproducing sounds by means of the vibration of a needle, following a groove on a rotating disc. This was the start of a speakers basically.

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World History Period 2 Industrial Revolution Timeline

ByWESLEY LUND
19 Mar 2022
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Date:

jan 1, 1877
Now
~ 148 years ago
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