1901

Radio Morse Code

1901 | December 12 – The Italian physicist Guglielmo Marconi developed radio telegraphy. Standing on Signal Hill, St. John’s, Newfoundland, he received the first transatlantic wireless signal – the letter “S” in Morse code – which was transmitted from over 1800 miles away in Cornwall, England.

Guglielmo Marconi (25 April 1874 – 20 July 1937) with Signal Hill Transmitter