The temperature on June 18, 1914 was between 8.0 °C and 17.3 °C and averaged 13.9 °C. There was 0.6 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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.
April 20 » Nineteen men, women, and children die in the Ludlow Massacre during a Colorado coal-miners' strike.
June 23 » Mexican Revolution: Pancho Villa takes Zacatecas from Victoriano Huerta.
August 15 » World War I: The First Russian Army, led by Paul von Rennenkampf, enters East Prussia.
September 26 » The United States Federal Trade Commission is established by the Federal Trade Commission Act.
November 7 » The first issue of The New Republic is published.
December 15 » World War I: The Serbian Army recaptures Belgrade from the invading Austro-Hungarian Army.
Day of marriage May 18, 1940
The temperature on May 18, 1940 was between 8.5 °C and 19.2 °C and averaged 13.4 °C. There was 9.9 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 29 » Finland initiates Winter War peace negotiations.
May 13 » World War II: Germany's conquest of France begins as the German army crosses the Meuse. Winston Churchill makes his "blood, toil, tears, and sweat" speech to the House of Commons.
June 3 » World War II: The Battle of Dunkirk ends with a German victory and with Allied forces in full retreat.
September 16 » World War II: Italian troops conquer Sidi Barrani.
November 11 » World War II: In the Battle of Taranto, the Royal Navy launches the first all-aircraft ship-to-ship naval attack in history.
November 11 » World War II: The German auxiliary cruiser Atlantis captures top secret British mail from the Automedon, and sends it to Japan.
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/I139966.php : accessed February 15, 2026), "Wybren Kooistra (1914-)".
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