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Simeon Leyson 1900 - 1942

Simeon Leyson was born on June 11, 1900, and died at age 42 years old in July 1942. Family, friend, or fan, this family history biography is for you to remember Simeon Leyson.

Simeon Leyson
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June 11, 1900
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July 1942
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Updated: November 12, 2011
Biography ID: 90234012 What's this
Simeon Leyson Simeon Leyson (1900 - 1942)
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Simeon Leyson's History: 1900 - 1942

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  • 06/11
    1900

    Birthday

    June 11, 1900
    Birthdate
    Unknown
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  • 07/dd
    1942

    Death

    July 1942
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  • Did you know?
    Simeon Leyson lived 33 years shorter than the average family member when died at the age of 42.
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In 1900, in the year that Simeon Leyson was born, the German physicist Max Planck formulated an energy theory, postulating the existence of "quanta," which lays the groundwork for the quantum theory of modern physics. In December, he introduced a paper on the Planck postulate which stated that E=hv - the energy of a photon is proportional to its frequency times a constant. Planck won a Nobel Prize in 1918 for his work in theoretical Physics.
Did you know?
In 1918, when he was 18 years old, on November 11th, an armistice was signed between the Allies and Germany, ending the fighting on the Western Front in World War I. This meant a complete defeat of Germany although Germany never formally surrendered. It took another six months of negotiations to sign an actual peace treaty between the warring parties.
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Simeon Leyson Jun 11, 1900 - Jul 1942
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Other Biographies

Other Leyson Family Biographies

Leyson, Burr (Aug 27, 1937 - Oct 31, 2010) Leyson, Apolonio (Jul 15, 1886 - Aug 1982) Leyson, Hazel (Jan 25, 1902 - Jan 1967) Leyson, Gladys (Jul 11, 1909 - Jul 24, 1995) Leyson, Edwin (Feb 20, 1896 - Apr 1966) Leyson, Isabel (Jul 28, 1912 - Dec 1993) Leyson, Agustin (Sep 17, 1912 - Mar 31, 2003) Leyson, Iluminada (Nov 29, 1917 - Jul 19, 2003) Leyson Jr, Jesus (Apr 12, 1927 - Apr 13, 2008) Leyson, Elsa (Feb 13, 1926 - Jul 24, 2000)
Leyson, Julia (Oct 8, 1930 - Oct 30, 2001) Leyson, Craddock (Jan 14, 1905 - Aug 1975) Leyson, Maude (Aug 4, 1884 - Sep 1982) Leyson, Harriet (Nov 24, 1911 - Sep 8, 2005) Leyson, Elaine (Aug 5, 1916 - Nov 12, 2003) Leyson, Lillian (Sep 7, 1910 - Jul 1984) Leyson, John (Mar 13, 1877 - Feb 1972) Leyson, Thomas (Aug 9, 1916 - Nov 1965) Leyson, Waldo (Sep 28, 1913 - Jan 29, 2006) Leyson, Barbara (Jan 24, 1929 - May 4, 2010)
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