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16 St. 24 Min, 9 Sept 1837 Jahr -

Beschreibung:

David Alter of Pennsylvania develops the first American electrical telegraph, but he never develops the idea into a practical system.

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ByWilliam Ward
30 Okt 2018
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147

Datum:

16 St. 24 Min, 9 Sept 1837 Jahr
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~ 186 years ago
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