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16 mar 1878 año - First Microphone (copy)
Descripción:
In 1878 David Edward Hughes invented what he called the microphone.
Añadido al timeline:
The hardest timeline in the history of timelines
By
Michael
6 oct 2017
0
0
614
fecha:
16 mar 1878 año
Ahora mismo
~ 146 years ago
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