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| | | | Communication |
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| 1876 |
| | | Alexander Graham Bell makes the first practical use of his telephone, summoning his assistant from another room with the words 'Mr Watson, come here. I want to see you.' | |
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| 1876 |
| | | Alexander Graham Bell demonstrates his new invention, the telephone, at the US Centennial Exhibition in Philadelphia | |
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| 1895 |
| | | 21-year-old Guglielmo Marconi succeeds in transmitting a radio signal more than a mile at his home near Bologna | |
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| 1896 |
| | | 22-year-old Guglielmo Marconi takes out a patent in Britain for the invention of radio | |
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| 1899 |
| | | Italian inventor Guglielmo Marconi succeeds in transmitting a wireless telegraph message across the English Channel | |
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| 1899 |
| | | Marconi equips two ships to send radio reports to New York on the progress of the yachts racing for the America's Cup | |
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| 1901 |
| | | Guglielmo Marconi transmits a radio message in Morse code 2100 miles, from Poldhu in Cornwall to St John's in Newfoundland | |
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| 1907 |
| | | US inventor Lee De Forest patents the Audion, a sensitive vacuum-tube radio receiver | |
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| 1910 |
| | | Lee De Forest broadcasts Enrico Caruso live from the Metropolitan Opera House in New York, but with mixed success owing to the poor quality | |
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| 1910 |
| | | Telegraph messages lead to the arrest of Dr Crippen and his mistress Ethel Le Neve in mid-Atlantic | |
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