The temperature on January 18, 1920 was between 8.6 °C and 9.3 °C and averaged 9.1 °C. There was 0.6 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
February 29 » Czechoslovak National Assembly adopts the Constitution.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
June 4 » Hungary loses 71% of its territory and 63% of its population when the Treaty of Trianon is signed in Paris.
July 11 » In the East Prussian plebiscite the local populace decides to remain with Weimar Germany.
July 20 » The Greek Army takes control of Silivri after Greece is awarded the city by the Paris Peace Conference; by 1923 Greece effectively lost control to the Turks.
November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
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/I466752.php : accessed January 11, 2026), "Willem de Graaf (1920-< 2019)".
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