36012 December 1901: Marconi receives the first transatlantic radio signal
In 60 words
On 12 December 1901, at Signal Hill in Newfoundland, Guglielmo Marconi heard three faint clicks, the Morse code letter 'S', sent by radio from Poldhu in Cornwall, England, about 3,500 kilometres away. It proved that radio waves could cross the ocean.