0 ч 18 мин, 16 март 1836 г. - In 1836, Samuel Morse invented the telegraph in the United States
Описание:
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.Добавлено на ленту времени:
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0 ч 18 мин, 16 март 1836 г.
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~ 189 г назад