Marconi was the Nobel Prize-winning Italian creator of the radio telegraph system. At 21, while experimenting with a homemade apparatus, he successfully sent signals across a distance of more than a mile and set off to London with his mother to find support for his work.
(http://img.thefreedictionary.com/thumb/0/0d/Guglielmo_Marconi.jpg)Guglielmo Marconi
He patented his system, organized a company to develop its commercial applications, and, in 1901, transmitted the first transatlantic wireless signal. During what disaster did his invention play a key role in saving lives?
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First Transatlantic Radio Signal Received (1901) (http://encyclopedia.thefreedictionary.com/Marconi,+Guglielmo)