Italian inventor and engineer Guglielmo Marconi sends the first radio signal across the Atlantic Ocean. On 19 January 1903, he sends the first successful transatlantic radio message from US President Theodore Roosevelt to British King Edward VII. Marconi’s technology was praised for saving hundreds of lives on board the Titanic in 1912 after a distress signal sent out by the ship’s radio operator was picked up. The disaster led to changes in the law to improve radio communications and safety at sea.
12 December 1901