12 December 1901: Marconi Sends First Transatlantic Radio Signal
On December 12, 1901, Guglielmo Marconi achieved what many scientists had declared impossible: transmitting a radio signal across the Atlantic Ocean. From a station in Poldhu, Cornwall, England, a simple Morse code message consisting of the letter S traveled through the air to Signal Hill in St. John Newfoundland, Canada, where Marconi himself received it….