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1 janv. 1795 - An Early Telegraph

Description:

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.

Ajouté au bande de temps:

Telegraph Timeline

ByMolina
7 nov. 2019

Date:

1 janv. 1795
Maintenaint
~ Il y a 229 ans

Les images:

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