The temperature on December 7, 1920 was between -1.8 °C and 1.7 °C and averaged 0.3 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
February 13 » The Negro National League is formed.
February 20 » An earthquake kills between 114 and 130 in Georgia and heavily damages the town of Gori.
April 28 » Azerbaijan is added to the Soviet Union.
October 14 » Finland and Soviet Russia sign the Treaty of Tartu, exchanging some territories.
November 28 » FIDAC (The Interallied Federation of War Veterans Organisations), the first international organization of war veterans is established in Paris, France
When copying data from this family tree, please include a reference to the origin: P. Heres, "Descendants Heeres", database, Genealogy Online (https://www.genealogieonline.nl/parenteel_heeres/I1099499751.php : accessed February 28, 2026), "Jannetje van Ommen (1919-1920)".
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