This section is from the book "Scientific American Reference Book. A Manual for the Office, Household and Shop", by Albert A. Hopkins, A. Russell Bond. Also available from Amazon: Scientific American Reference Book.
The Marconi system, developed by Signor Guglielmo Marconi, a young Italian inventor, is the pioneer system of Hertzian wave telegraphy. In 1896 Marconi accepted an invitation from the British Telegraph Department to make experiments with his system in England. In the spring of 1899 the first wireless message was transmitted across the English channel. On November 15, 1899, the first daily newspaper ever published on an Atlantic liner was issued on the steamer St. Paul, containing news transmitted from shore by wireless telegraphy. In 1900 the system was adopted by the British Admiralty and installed on their battleships and cruisers. On December 12, 1901, Marconi succeeded in sending the signal for the letter "S" across the Atlantic from Poldhu, Cornwall, to St. John's, Newfoundland. But his experiments were interrupted by a cable company which owned a monopoly of all telegraph communications with Newfoundland. In March, 1902, Marconi crossed the Atlantic on the "Philadelphia," which had been equipped with his instruments, and was able to receive intelligible messages at a distance of 1,551 miles from the Poldhu station. In October of the same year Marconi sailed from England to Nova Scotia, and received messages from his Poldhu station throughout the voyage. On January 18, 1903, the first wireless message from the United States to England was sent by President Roosevelt to King Edward. In March, 1903, the Marconi Company undertook to furnish the London "Times" with daily wireless despatches from the United States, but they were discontinued after a couple of despatches had been sent. The Italian Government, in 1903, voted $160,000 for the erection of a Marconi station in Italy to communicate with this country.
 
Continue to: