The temperature on April 1, 1918 was between 2.6 °C and 14.1 °C and averaged 8.4 °C. There was 10.0 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 31 » A series of accidental collisions on a misty Scottish night leads to the loss of two Royal Navy submarines with over a hundred lives, and damage to another five British warships.
April 20 » Manfred von Richthofen, a.k.a. The Red Baron, shoots down his 79th and 80th victims, his final victories before his death the following day.
May 16 » The Sedition Act of 1918 is passed by the U.S. Congress, making criticism of the government during wartime an imprisonable offense. It will be repealed less than two years later.
September 15 » World War I: Allied troops break through the Bulgarian defenses on the Macedonian front.
October 30 » World War I: Lands of the Crown of Saint Stephen, a state union of Kingdom of Hungary and Triune Kingdom of Croatia, Slavonia and Dalmatia is abolished with decisions of Croatian and Hungarian parliaments
November 1 » Western Ukraine separates from Austria-Hungary.
Day of marriage November 15, 1941
The temperature on November 15, 1941 was between -6.9 °C and -1.4 °C and averaged -4.0 °C. There was 2.9 hours of sunshine (33%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
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.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 6 » United States President Franklin D. Roosevelt delivers his Four Freedoms speech in the State of the Union address.
June 22 » World War II: Nazi Germany invades the Soviet Union in Operation Barbarossa.
June 27 » Romanian authorities launch one of the most violent pogroms in Jewish history in the city of Iași, resulting in the murder of at least 13,266 Jews.
September 17 » World War II: Soviet forces enter Tehran during the Anglo-Soviet invasion of Iran.
November 14 » World War II: In Slonim, German forces engaged in Operation Barbarossa murder 9,000 Jews in a single day.
December 15 » The Holocaust in Ukraine: German troops murder over 15,000 Jews at Drobytsky Yar, a ravine southeast of the city of Kharkiv.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I335166.php : accessed February 24, 2026), "Jantinus Wintmulder (1918-< 2017)".
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