Family tree Wernke » Maria Groen (1887-1968)

Day of marriage January 20, 1915

• The temperature on January 20, 1915 was between 1.5 °C and 4.7 °C and averaged 3.5 °C. There was 0.7 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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 13 » The 6.7 M_w  Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
  • January 17 » Russia defeats Ottoman Turkey in the Battle of Sarikamish during the Caucasus Campaign of World War I.
  • March 20 » Albert Einstein publishes his general theory of relativity.
  • May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
  • 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.
  • July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.

Day of death June 16, 1968

• The temperature on June 16, 1968 was between 13.5 °C and 22.3 °C and averaged 17.8 °C. There was 3.9 mm of rain during 4.5 hours. There was 2.7 hours of sunshine (16%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
• Koningin Juliana (Huis van Oranje-Nassau) was from September 4, 1948 till April 30, 1980 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet De Jong, with P.J.S. de Jong (KVP) as prime minister.
• In the year 1968: Source: Wikipedia
  • The Netherlands had about 12.7 million citizens.
  • February 1 » Vietnam War: The execution of Viet Cong officer Nguyễn Văn Lém by South Vietnamese National Police Chief Nguyễn Ngọc Loan is recorded on motion picture film, as well as in an iconic still photograph taken by Eddie Adams.
  • April 23 » Vietnam War: Student protesters at Columbia University in New York City take over administration buildings and shut down the university.
  • May 30 » Charles de Gaulle reappears publicly after his flight to Baden-Baden, Germany, and dissolves the French National Assembly by a radio appeal. Immediately after, less than one million of his supporters march on the Champs-Élysées in Paris. This is the turning point of May 1968 events in France.
  • June 11 » Lloyd J. Old identified the first cell surface antigens that could differentiate among different cell types.
  • September 30 » The Boeing 747 is rolled out and shown to the public for the first time.
  • November 5 » Richard Nixon is elected as 37th President of the United States.

Source: Wikipedia

• 1967 » Reginald Denny, English actor (b. 1891)
• 1969 » Harold Alexander, 1st Earl Alexander of Tunis, English field marshal and politician, 17th Governor General of Canada (b. 1891)
• 1970 » Brian Piccolo, American football player (b. 1943)
• 1970 » Sydney Chapman, English mathematician and geophysicist (b. 1888)
• 1971 » John Reith, 1st Baron Reith, Scottish broadcaster, co-founded BBC (b. 1889)
• 1974 » Amalie Sara Colquhoun, Australian landscape and portrait painter (b. 1894)