The temperature on July 10, 1917 was between 12.2 °C and 17.8 °C and averaged 14.5 °C. There was 5.1 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) 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.
January 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
February 5 » The current constitution of Mexico is adopted, establishing a federal republic with powers separated into independent executive, legislative, and judicial branches.
May 26 » Several powerful tornadoes rip through Illinois, including the city of Mattoon.
June 11 » King Alexander assumes the throne of Greece after his father, Constantine I, abdicates under pressure from allied armies occupying Athens.
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
Day of death January 9, 1920
The temperature on January 9, 1920 was between 0.2 °C and 4.9 °C and averaged 2.2 °C. There was 1.7 mm of rain. There was 3.1 hours of sunshine (39%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
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 16 » The League of Nations holds its first council meeting in Paris, France.
January 19 » The United States Senate votes against joining the League of Nations.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
October 30 » The Communist Party of Australia is founded in Sydney.
November 12 » Italy and the Kingdom of Serbs, Croats and Slovenes sign the Treaty of Rapallo.
When copying data from this family tree, please include a reference to the origin: Ted Olde Scheper, "Family tree Olde Scheper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-olde-scheper/I557.php : accessed March 10, 2026), "Willem Lamberts van der Sleen (1917-1920)".
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