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1 jan 1795 ano - An Early Telegraph

Descrição:

Another widely used visual telegraph was developed in England by a man named George Murray in 1795. The way messages were sent was by opening and closing various combinations of 6 shutters.

Adicionado na linha do tempo:

Telegraph Timeline

ByMolina
7 nov 2019
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Data:

1 jan 1795 ano
Agora
~ 230 years ago

Imagens:

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