jan 1, 1900 - Guglielmo Marconi creates first radio communication system based on radiotelegraphy.

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Although radio waves and radio transmitters were invented previously, one of the main inventions was the first creation of a communication system based on radio waves.
Guglielmo Marconi is credited as the first radio inventor, and the first man who transmitted a message through Atlantic ocean through radiowaves.


Wood, Joe. “History of the Radio:” History of the Radio: A Complete Radio Timeline, www.techwholesale.com/history-of-the-radio.html.

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