The temperature on January 3, 1921 was between 6.0 °C and 9.3 °C and averaged 7.7 °C. There was 0.6 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-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.
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.
March 31 » The Royal Australian Air Force is formed.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
July 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
Day of death January 20, 1955
The temperature on January 20, 1955 was between -9.3 °C and -0.7 °C and averaged -5.1 °C. There was 0.1 mm of rain. There was 3.1 hours of sunshine (37%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
April 12 » The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
July 27 » The Austrian State Treaty restores Austrian sovereignty.
September 16 » A Zulu-class submarine becomes the first to launch a ballistic missile.
November 23 » The Cocos Islands are transferred from the control of the United Kingdom to that of Australia.
December 14 » Albania, Austria, Bulgaria, Cambodia, Ceylon, Finland, Hungary, Ireland, Italy, Jordan, Laos, Libya, Nepal, Portugal, Romania and Spain join the United Nations through United Nations Security Council Resolution 109.
December 20 » Cardiff is proclaimed the capital city of Wales, United Kingdom.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I100622.php : accessed March 6, 2026), "Frederik van den Hoorn (1921-1955)".
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