The temperature on August 31, 1920 was between 11.3 °C and 16.7 °C and averaged 14.0 °C. There was 1.1 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
July 11 » In the East Prussian plebiscite the local populace decides to remain with Weimar Germany.
August 13 » Polish–Soviet War: The Battle of Warsaw begins and will last till August 25. The Red Army is defeated.
October 14 » Finland and Soviet Russia sign the Treaty of Tartu, exchanging some territories.
November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
November 15 » The Free City of Danzig is established.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I34833.php : accessed March 6, 2026), "Cornelis van Leeuwen (1920-)".
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