20 ore 44 min, 13 feb 1838 anni -
Descrizione:
Samuel Morse sends his first public demonstration message over two miles of wire at Speedwell Ironworks in New Jersey. Morse also demonstrates his invention to the Franklin Institute and President Martin Van Buren in early 1838.[
Aggiunto al nastro di tempo:
Data:
20 ore 44 min, 13 feb 1838 anni
Adesso
~ 186 years ago