The temperature on January 17, 1921 was between -3.2 °C and 5.4 °C and averaged 0.6 °C. There was 4.7 mm of rain. There was 0.3 hours of sunshine (4%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-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 20 » The British K-class submarine HMS K5 sinks in the English Channel; all 56 on board die.
January 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
July 11 » Former president of the United States William Howard Taft is sworn in as 10th chief justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
October 5 » The World Series is the first to be broadcast on radio.
October 19 » The Portuguese Prime Minister and several officials are murdered in the Bloody Night coup.
Day of death December 10, 1921
The temperature on December 10, 1921 was between 0.8 °C and 9.6 °C and averaged 6.6 °C. There was 3.7 mm of rain. 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 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
February 25 » Georgian capital Tbilisi falls to the invading Russian forces after heavy fighting and the Russians declare the Georgian Soviet Socialist Republic.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
May 31 » The Tulsa race massacre kills at least 39, but other estimates of black fatalities vary from 55 to about 300.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
When copying data from this family tree, please include a reference to the origin: Theo van Deventer, "Family tree Van Deventer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-deventer/I433.php : accessed March 1, 2026), "Arnoldus Adrianus van der Heiden (1921-1921)".
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