The temperature on September 3, 1917 was between 7.1 °C and 19.1 °C and averaged 13.9 °C. There was 10.2 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
April 9 » World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
May 18 » World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription.
June 4 » The first Pulitzer Prizes are awarded: Laura E. Richards, Maude H. Elliott, and Florence Hall receive the first Pulitzer for biography (for Julia Ward Howe). Jean Jules Jusserand receives the first Pulitzer for history for his work With Americans of Past and Present Days. Herbert B. Swope receives the first Pulitzer for journalism for his work for the New York World.
June 11 » King Alexander assumes the throne of Greece after his father, Constantine I, abdicates under pressure from allied armies occupying Athens.
June 28 » World War I: Greece joins the Allied powers.
November 7 » The Gregorian calendar date of the October Revolution, which gets its name from the Julian calendar date of 25 October. On this date in 1917, the Bolsheviks storm the Winter Palace.
Day of death August 20, 1999
The temperature on August 20, 1999 was between 11.3 °C and 19.8 °C and averaged 15.6 °C. There was 2.7 mm of rain during 2.1 hours. There was 3.4 hours of sunshine (24%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
March 29 » The Dow Jones Industrial Average closes above the 10,000 mark (10,006.78) for the first time, during the height of the dot-com bubble.
April 8 » Haryana Gana Parishad, a political party in the Indian state of Haryana, merges with the Indian National Congress.
July 31 » Discovery Program: Lunar Prospector: NASA intentionally crashes the spacecraft into the Moon, thus ending its mission to detect frozen water on the Moon's surface.
September 14 » Kiribati, Nauru and Tonga join the United Nations.
December 5 » Helen Clark is sworn in as Prime Minister of New Zealand, the second woman to hold the post and the first to be elected to the role.
December 21 » The Spanish Civil Guard intercepts a van loaded with 950kg of explosives that ETA intended to use to blow up Torre Picasso in Madrid, Spain.
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/I189702.php : accessed January 11, 2026), "Roelf Koets (1917-1999)".
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