3 янв 1844 г. - Invention of the Telegraph
Описание:
There were previous signaling systems that utilized flags and lights, but Samuel F.B. Morse’s system of communication by electricity used dots and dashes to convey a code that would be translated by the recipient. His first transmitted telegraph message is, “What hath God wrought?”Добавлено на ленту времени:
Дата:
3 янв 1844 г.
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~ 181 г назад