Guglielmo Marconi

Guglielmo Marconi, ( April 25, 1874 - July 20, 1937), was an Italian inventor, known as the father of long distance radio transmission and for his development of Marconi's law and a radio telegraph system.
 On 13 May 1897, Guglielmo Marconi sent the world's first radio message across water from Lavernock Point on the South Wales coast (overlooking the Bristol Channel) to Flat Holm island 3 miles (4.8km) away.The message was to ‘The Times’ newspaper from a correspondent in northern France. This was the message that was broadcast: “Communication between England and the Continent was set up yesterday morning by the Marconi system of wireless telegraphy....Signor Marconi is here conducting the trials and is very satisfied with the results.” World's First Radio Message.

Source: projectbritain