The temperature on September 11, 1920 was between 5.4 °C and 18.5 °C and averaged 11.9 °C. There was 2.6 hours of sunshine (20%). The average windspeed was 2 Bft (weak wind) 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.
January 7 » The New York State Assembly refuses to seat five duly elected Socialist assemblymen.
January 10 » League of Nations Covenant enters into force. On January 16 the organization holds its first council meeting, in Paris.
April 15 » Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy.
June 4 » Hungary loses 71% of its territory and 63% of its population when the Treaty of Trianon is signed in Paris.
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 16 » Qantas, Australia's national airline, is founded as Queensland and Northern Territory Aerial Services Limited.
When copying data from this family tree, please include a reference to the origin: Frits Stempher, "Family tree Stempher", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-stempher/I365.php : accessed October 9, 2026), "Albert Jan Udink (????-1920)".
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