Family tree Roos » Leendert SILVIS (1915-)

Birthday June 21, 1915

• The temperature on June 21, 1915 was between 3.9 °C and 21.2 °C and averaged 14.4 °C. There was 14.0 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
• In the year 1915: Source: Wikipedia
  • The Netherlands had about 6.3 million citizens.
  • January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
  • February 8 » D. W. Griffith's controversial film The Birth of a Nation premieres in Los Angeles.
  • March 20 » Albert Einstein publishes his general theory of relativity.
  • July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
  • August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
  • October 14 » World War I: Bulgaria joins the Central Powers.

Source: Wikipedia

• 1914 » William Vickrey, Canadian-American economist and academic, Nobel Prize laureate († 1996)
• 1915 » Wilhelm Gliese, German soldier and astronomer († 1993)
• 1916 » Buddy O'Connor, Canadian ice hockey player († 1977)
• 1916 » Herbert Friedman, American physicist and astronomer († 2000)
• 1916 » Joseph Cyril Bamford, English businessman, founded J. C. Bamford († 2001)
• 1916 » Tchan Fou-li, Chinese photographer († 2018)