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20 h 44 m, 13 fev 1838 ano -

Descrição:

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.[

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ByWilliam Ward
30 out 2018
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0
147

Data:

20 h 44 m, 13 fev 1838 ano
Agora
~ 186 years ago
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