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20 agos 1793 año - 1793 Commercial Semaphore System

Descripción:

Chappe brothers established the first commercial semaphore system between two locations near Paris. Napoleon used it a lot. Semaphore signaling spread to Italy, Germany and Russia. Thousands of men were employed manning the stations. The last operational semaphore system went out of business in 1860, Algeria.

Añadido al timeline:

Telecommunications: A History

ByPaul Duran Jimenez
20 oct 2017

fecha:

20 agos 1793 año
Ahora mismo
~ 230 years ago
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