0 h 18 min, 16 mars 1836 ans - In 1836, Samuel Morse invented the telegraph in the United States
Description:
The telegraph transmitted electrical signals over wire connected between different Stations. Samuel also invented Morse Code. It was a communication revolution and was eventually replaced by the telephone, fax machines and other modern technology.Ajouté au bande de temps:
Date:
0 h 18 min, 16 mars 1836 ans
Maintenaint
~ Il y a 189 ans