The temperature on February 17, 1917 was between -1.1 °C and 6.6 °C and averaged 3.5 °C. There was 0.1 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
February 5 » The current constitution of Mexico is adopted, establishing a federal republic with powers separated into independent executive, legislative, and judicial branches.
May 13 » Three children report the first apparition of Our Lady of Fátima in Fátima, Portugal.
May 18 » World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription.
July 20 » World War I: The Corfu Declaration, which leads to the creation of the post-war Kingdom of Yugoslavia, is signed by the Yugoslav Committee and Kingdom of Serbia.
September 14 » The Russian Empire is formally replaced by the Russian Republic.
October 26 » First World War: Brazil declares war on the Central Powers.
Day of death June 17, 1983
The temperature on June 17, 1983 was between 4.3 °C and 16.6 °C and averaged 11.6 °C. There was -0.1 mm of rain. There was 14.2 hours of sunshine (85%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 17 » Lebanon, Israel, and the United States sign an agreement on Israeli withdrawal from Lebanon.
July 15 » An attack at Orly Airport in Paris is launched by Armenian militant organisation ASALA, leaving eight people dead and 55 injured.
September 1 » Cold War: Korean Air Lines Flight 007 is shot down by a Soviet Union jet fighter when the commercial aircraft enters Soviet airspace, killing all 269 on board, including Congressman Lawrence McDonald.
October 22 » Two correctional officers are killed by inmates at the United States Penitentiary in Marion, Illinois. The incident inspires the Supermax model of prisons.
November 15 » Turkish Republic of Northern Cyprus declares independence. Recognized only by Turkey.
November 26 » Brink's-Mat robbery: In London, 6,800 gold bars worth nearly £26 million are stolen from the Brink's-Mat vault at Heathrow Airport.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I130480.php : accessed October 8, 2026), "Arjen Koopman (1917-1983)".
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