10h 14min, dec 12, 1901 y - Guglielmo Marconi, listening through his telephone headset, heard a series of three "bips"; Morse code for the letter "s." He had received the first transatlantic communication, sent from a radio transmitter just over 2100 miles away, on the southwest coast of England using technology he himself had developed.
Description:
https://i.ytimg.com/vi/AmZWUCwmKcs/maxresdefault.jpgAdded to timeline:
Date:
10h 14min, dec 12, 1901 y
Now
~ 123 years ago