Guglielmo Marconi
(1874-1937)

Died aged c. 63

Guglielmo Marconi, 1st Marquis of Marconi (Italian: [ɡuʎˈʎɛlmo marˈkoːni]; 25 April 1874 – 20 July 1937) was an Italian inventor and electrical engineer known for his pioneering work on long-distance radio transmission and for his development of Marconi's law and a radio telegraph system. He is often credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy". Marconi was an entrepreneur, businessman, and founder of The Wireless Telegraph & Signal Company in the United Kingdom in 1897 (which became the Marconi Company). He succeeded in making a commercial success of radio by innovating and building on the work of previous experimenters and physicists. In 1929, the King of Italy ennobled Marconi as a Marchese (marquis).

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Commemorated on 25 plaques

Photo of Guglielmo Marconi blue plaque
Spudgun67 on Wikimedia Commons
Photo of Guglielmo Marconi blue plaque
Peter Reed on Flickr
Photo of Guglielmo Marconi blue plaque
rw_norris2000 on Flickr
Photo of Guglielmo Marconi and Nellie Melba blue plaque
cazphoto.co.uk on Flickr
Photo of Guglielmo Marconi brass plaque
Robin Lucas on Geograph
Photo of Guglielmo Marconi grey plaque
Spudgun67 on Wikimedia Commons
Photo of Guglielmo Marconi and Wireless Telegraph Company Limited blue plaque
Stuart Axe on Flickr
Photo of Guglielmo Marconi and George Kemp blue plaque
Kay Atherton on Geograph
Photo of Madeira Hotel, Bournemouth, Court Royal, and Guglielmo Marconi blue plaque
Elliott Brown on Flickr
Photo of Wireless Telegraph Company Limited, Nellie Melba, and Guglielmo Marconi bronze plaque
Nick Harrison on Flickr
Photo of Guglielmo Marconi gold plaque
Simply Jan on Flickr
Photo of Guglielmo Marconi gold plaque
Simply Jan on Flickr
Photo of Guglielmo Marconi marble plaque
Eugene O'Loughlin on Flickr PD 1.0
Photo of Elettra Marconi and Guglielmo Marconi bronze plaque
Nick Harrison on Flickr

Guglielmo Marconi 1874-1937 the pioneer of wireless communications lived here in 1896-1897

71 Hereford Road, Westminster, W2, London, United Kingdom where he lived (1896-1897)

This stone marks the site of The Needles Wireless Telegraph Station where Guglielmo Marconi and his British collaborators carried out from 6th December 1897 to 26th May 1900 a series of experiments which constituted some of the more important phases of their earlier pioneer work in the development of wireless communication of all kinds.

Needles Pleasure Park, Alum Bay, United Kingdom where he experimented

Guglielmo Marconi 1874-1937 pioneer in wireless communication lived and carried out experiments here in 1897

142 Whyteladies Lane, Cookham Rise, Cookham, United Kingdom where he lived and experimented

Guglielmo Marconi (1874-1937) inventor of a wireless telegraphy system. He conducted experiments from Sandbanks over a 30 year period.

Haven Point, Sandbanks, United Kingdom where he experimented

Guglielmo Marconi 1874-1937 the Father Of Wireless. From this site was transmitted Britain's first official radio broadcast by Dame Nellie Melba 15th June 1920

Marconi Building, New Street, Chelmsford, United Kingdom where he transmitted Britains first official radio broadcast

Luttrell's "Tower" built 1730. Here Guglielmo Marconi concluded his wireless experiments during the Great War of 1914-1918

Eaglehurst, Calshot, United Kingdom where he experimented

Guglielmo Marconi whose pioneer work in wireless telegraphy for the safety of all seafarers was furthered in this building during the first years of the century

Bass Point, Lizard, United Kingdom where he experimented

From this site Guglielmo Marconi made the first public transmission of wireless signals on 27 July 1896

Newgate Street, London, United Kingdom where he made the first public transmission of wireless signals

Near this site the first radio messages were exchanged across water by Guglielmo Marconi and George Kemp between Laverock & Flatholm 18th May, Lavernock & Breandown 18th May 1897

Fort Road, Lavernock, United Kingdom where he exchanged the first radio message across water

In this building was established in 1899 the first radio factory in the world by the Wireless Telegraph & Signal Co Ltd. later known as "Marconi's Wireless Telegraph Co Ltd"

Hall Street, Chelmsford, United Kingdom where he was (1899)

This memorial is dedicated by Canadian Marconi Company to the government and people of Newfoundland to commemorate an outstanding event in the history of Newfoundland and a new era in world communications. The first transatlantic wireless signal was received by Guglielmo Marconi on December 12, 1901 on this spot

Signal Hill, St John's, NL, Canada where he received the first transatlantic radio signals

Site of the first United States transatlantic wireless telegraph station built in 1901-1902. Marconi Wireless Telegraph Company of America predecessor of RCA transmitted January 19, 1903 the first U.S. transatlantic wireless telegram addressed to Edward VII King of England by Theodore Roosevelt President of the United States of America

Wellfleet, Provincetown, Cape Cod, MA, United States where he transmitted

To recall the historic occasion in 1898 when Marchese Marconi and his assistant George Kemp established wireless communication with Rathlin to report to Lloyds Station at Torr Head on ships passing along the north coast of the island

14 Bayview Road, Ballycastle, United Kingdom where he experimented

Electrical engineering milestone. Transatlantic Radio Signals. At Signal Hill on 12 December 1901 Guglielmo Marconi and his assistant George Kemp confirmed the reception of the first transatlantic radio signals with a telephone receiver and a wire antenna kept aloft by a kite. They heard morse code for the letter "S" transmitted from Poldhc Cornwall. Their experiments showed that radio signals extended far beyond the horizon giving radio a new global dimension for communication in the twentieth century

Signal Hill, St John's, NL, Canada where he received the first transatlantic radio signals

Princess Elettra Marconi Giovanelli unveiled this plaque on the 28 June 1995 to commemorate the 100th anniversary of the development of wireless by her father Guglielmo Marconi. This site was used by Marconi as the first commercial transatlantic wireless station between 1907 and 1922

side road, Ballinaboy, Ireland where he used this site as the first commercial transatlantic wireless station

Princess Elettra Marconi Giovanelli unveiled this plaque on the 231st May 2007 in the presence of her son Guglielmo to commemorate the 100th anniversary of the wireless station at Derrygimla owned by her father Guglielmo Marconi

Derrygimla, Maum, Ireland where he worked

Guglielmo Marconi and George Kemp carried out a successful experiment in Wireless Telegrapy here 25th August 1898

Kenmara House, 45 North Street, Ballycastle, United Kingdom where he was

Court Royal formerly "Madeira Hotel". Notable guest Guglielmo Marconi built 100 foot experimental aerial mast here and received the world's first paid radio message from Lord Kelvin on the Isle of Wight on the 3rd June 1898. Since 1947, Court Royal, has been a convalescent home for South Wales miners.

Court Royal, South Cliff Road, Bournemouth, United Kingdom where he built 100 foot experimental aerial mast here (1898)

Marconi House Within this building Marconi's Wireless Telegraph Company Limited operated their famous broadcasting station 2.L.O. from May 11th to November 14th 1922 when it became the first station of the British Broadcasting Company. The first pre-announced broadcast of public entertainment took place two years earlier when Dame Nellie Melba sang from Marconi's Chelmsford Works on June 15th 1920

Marconi House, The Strand, London, United Kingdom where he worked

This stone marks the site of the Needles Wireless Telegraph Station where Guglielmo Marconi and his British collaborators carried out from 6th December 1897 to 26th May 1900 a series of experiments which constituted some of the more important phases of their earlier pioneer work in the development of wireless communication of all kinds.

, Alum Bay, United Kingdom where he experimented (1897-1900)

Marconi described the Needles station as the world's "first permanent wireless station". It was erected under his personal supervision by his assistant George Kemp for Marconi's Wireless Telegraph Co. Ltd. and was completed on 5th December 1897. Other radio technicists of this company who pioneered here were P.W. Paget - A. Gray - C.E. Rickard - W. Densham - F.S. Stacey - P.I. Woodward - C.H. Taylor. The station was dismantled in June 1900.

, Alum Bay, United Kingdom where he was

Guglielmo Marconi [full inscription unknown]

, Bologna, Italy where he was born (1874)

On 20th July 1898 Guglielmo Marconi transmitted reports of the Kingstown Regatta by wireless to this building for newspaper publication. This was the first time in the world that radio was used in journalism. To mark the centenary of this historic event An Cathaoirleach Councillor Richard Conroy unveiled this plaque on 20th July 1998.

Queen's Road, Dún Laoghaire, Ireland where he was

Guglielmo Marconi 1874-1937. The coast at Weston-Super-Mare has historic associations with wireless telegraphy. In 1897 Marconi, co-operating with Sir William Preece and other Post Office engineers, sent the first wireless signals across water from Lavernock on the Welsh side of the Bristol Channel to Flat Holm and Brean Down on this side. The first ultra-short-wave telephone, as an extension of the land-line system, linked Cardiff and Weston in 1932. Marconi's work laid the foundation for the development of radio communication and of broadcasting throughout the world.

Old Post Office Lane, Weston-super-Mare, United Kingdom where he was

27 March 1999 Centenary of the first international wireless transmission between Wimereux, France, and the South Foreland Lighthouse by Guglielmo Marconi. Unveiled by Princess Elettra Marconi

, Dover, United Kingdom where he was