The temperature on April 24, 1917 was between -1.0 °C and 10.8 °C and averaged 5.6 °C. There was 3.8 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
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.
January 17 » The United States pays Denmark $25 million for the Virgin Islands.
March 16 » World War I: A German auxiliary cruiser is sunk in the Action of 16 March 1917.
March 25 » The Georgian Orthodox Church restores its autocephaly abolished by Imperial Russia in 1811.
May 18 » World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription.
August 6 » World War I: Battle of Mărășești between the Romanian and German armies begins.
December 6 » World War I: USSJacob Jones is the first American destroyer to be sunk by enemy action when it is torpedoed by German submarine SMU-53.
Day of marriage May 12, 1947
The temperature on May 12, 1947 was between 13.3 °C and 23.0 °C and averaged 17.3 °C. There was 2.3 mm of rain during 1.8 hours. There was 4.0 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
February 10 » The Paris Peace Treaties are signed by Italy, Romania, Hungary, Bulgaria, Finland and the Allies of World War II.
February 25 » The formal abolition of Prussia is proclaimed by the Allied Control Council, the Prussian government having already been abolished by the Preußenschlag of 1932.
March 29 » Malagasy Uprising against French colonial rule in Madagascar.
July 11 » The Exodus 1947 heads to Palestine from France.
July 19 » Prime Minister of the shadow Burmese government, Bogyoke Aung San and eight others are assassinated.
November 30 » Civil War in Mandatory Palestine begins, leading up to the creation of the state of Israel.
Day of death September 6, 1981
The temperature on September 6, 1981 was between 5.1 °C and 24.1 °C and averaged 14.7 °C. There was -0.1 mm of rain. There was 10.3 hours of sunshine (77%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
January 1 » Greece is admitted into the European Community.
April 25 » More than 100 workers are exposed to radiation during repairs of at the Tsuruga Nuclear Power Plant in Japan.
June 7 » The Israeli Air Force destroys Iraq's Osiraq nuclear reactor during Operation Opera.
September 25 » Belize joins the United Nations.
September 26 » Nolan Ryan sets a Major League record by throwing his fifth no-hitter.
December 31 » A coup d'état in Ghana removes President Hilla Limann's PNP government and replaces it with the Provisional National Defence Council led by Flight lieutenant Jerry Rawlings.
When copying data from this family tree, please include a reference to the origin: Marieke Cooper, "Family tree Cooper, Kooper, Oostwal, Robert, Ooteman en Blokland", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-cooper/I3936.php : accessed February 23, 2026), "Heronimus Johannes (Roon) Vet (1917-1981)".
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