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1 janv. 1840 - Telegraph

Description:

System of communication employing electronical apparatus to transmit and receive signals. Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication.

Ajouté au bande de temps:

14 déc. 2019
0
0
483

Date:

1 janv. 1840
Maintenaint
~ Il y a 185 ans

Les images: