On This Day
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Inventor and electrical engineer Guglielmo Marconi (53) divorces Beatrice O'Brien after 22 years of marriage

Guglielmo Giovanni Maria Marconi, 1st Marquess (25 April 1874 – 20 July 1937), was an Italian radio-frequency engineer, inventor, and politician known for his creation of a practical radio wave-based...

Guglielmo Giovanni Maria Marconi, 1st Marquess (25 April 1874 – 20 July 1937), was an Italian radio-frequency engineer, inventor, and politician known for his creation of a practical radio wave-based wireless telegraph system. This led to his being largely credited as the inventor of radio and sharing the 1909 Nobel Prize in Physics with Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy."

His work laid the foundation for the development of radio, television, and all modern wireless communication systems.

As an entrepreneur and a businessman, Marconi founded The Wireless Telegraph & Signal Company (later the Marconi Company) in the United Kingdom in 1897. In 1929, he was ennobled as a marquess (Italian: marchese) by King Victor Emmanuel III.

Historical Significance

Guglielmo Giovanni Maria Marconi, 1st Marquess (25 April 1874 – 20 July 1937), was an Italian radio-frequency engineer, inventor, and politician known for his creation of a practical radio wave-based wireless telegraph system.

Key People

Guglielmo Marconi

radio-frequency engineer and inventor

Italian radio-frequency engineer and inventor

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Events Before

  1. A major flood on the Rhine River strikes Cologne

    Cologne is the fourth-most populous city of Germany and the largest city of the German state of North Rhine-Westphalia with nearly 1.1 million inhabitants in the city proper and over 3.1 million...

  2. American songwriter Irving Berlin (37) weds heiress and writer Ellin Mackay (23) in a simple civil ceremony in NYC, unti

    American songwriter Irving Berlin (37) weds heiress and writer Ellin Mackay (23) in a simple civil ceremony in NYC, until her death in 1988

  3. Abdulaziz Ibn Saud becomes King of Nejd and Hejaz, forerunner of the Kingdom of Saudi Arabia

    Abdulaziz Ibn Saud becomes King of Nejd and Hejaz, forerunner of the Kingdom of Saudi Arabia

  4. American comedian George Burns (28) weds American comedienne Gracie Allen (31), until her death in 1964

    American comedian George Burns (28) weds American comedienne Gracie Allen (31), until her death in 1964

  5. John Logie Baird gives the first public demonstration of television in his laboratory in London

    John Logie Baird gives the first public demonstration of television in his laboratory in London

Events After

  1. Algemeene Vereeniging Radio Omroep (AVRO) begins broadcasting in the Netherlands

    Algemeene Vereeniging Radio Omroep (AVRO) begins broadcasting in the Netherlands

  2. Paleoanthropologist Davidson Black reports his findings on the ancient human fossils found at Zhoukoudian, China, in the

    Paleoanthropologist Davidson Black reports his findings on the ancient human fossils found at Zhoukoudian, China, in the journal Nature and declares them to be a new species he names 'Sinanthropus pekinensis' (now known as 'Homo erectus')

  3. American actress Mary Astor (21) weds American film director Kenneth Hawks (30) at her family home "Moorcrest" in the Ho

    American actress Mary Astor (21) weds American film director Kenneth Hawks (30) at her family home "Moorcrest" in the Hollywood Hills, until his death in 1930

  4. Industrialist Oskar Schindler (19) weds Emilie Schindler (20) in Svitavy, Czech Republic

    Industrialist Oskar Schindler (19) weds Emilie Schindler (20) in Svitavy, Czech Republic

  5. RCA and GE install three test television sets in homes in Schenectady, New York, allowing trials of inventor E.F.W. Alex

    RCA and GE install three test television sets in homes in Schenectady, New York, allowing trials of inventor E.F.W. Alexanderson's first home television receiver; a poor and unsteady 1.5-square-inch picture is received from a radio transmitter

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Frequently Asked Questions

What happened on April 27, 1927?
Guglielmo Giovanni Maria Marconi, 1st Marquess (25 April 1874 – 20 July 1937), was an Italian radio-frequency engineer, inventor, and politician known for his creation of a practical radio wave-based wireless telegraph system. This led to his being largely credited as the inventor of radio and sharing the 1909 Nobel Prize in Physics with Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy." His work laid the foundation for the development of radio, television, and all modern wireless communication systems. As an entrepreneur and a businessman, Marconi founded The Wireless Telegraph & Signal Company (later the Marconi Company) in the United Kingdom in 1897.
Why is Inventor and electrical engineer Guglielmo Marconi (53) divorces Beatrice O'B... significant?
Guglielmo Giovanni Maria Marconi, 1st Marquess (25 April 1874 – 20 July 1937), was an Italian radio-frequency engineer, inventor, and politician known for his creation of a practical radio wave-based wireless telegraph system.
Who was involved in Inventor and electrical engineer Guglielmo Marconi (53) divorces Beatrice O'B...?
Key figures include Guglielmo Marconi (radio-frequency engineer and inventor).

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April 27 in HistoryYear 1927