The temperature on April 13, 1921 was between 2.1 °C and 17.6 °C and averaged 10.4 °C. There was 0.1 mm of rain. There was 9.3 hours of sunshine (68%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
March 17 » The Second Polish Republic adopts the March Constitution.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
September 7 » The Legion of Mary, the largest apostolic organization of lay people in the Catholic Church, is founded in Dublin, Ireland.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
When copying data from this family tree, please include a reference to the origin: Bernd Boxma, "Family tree Boxma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-boxma/I843.php : accessed March 4, 2026), "Jans Boxma (1921-1992)".
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