The temperature on March 7, 1921 was between -0.7 °C and 6.7 °C and averaged 3.2 °C. There was 0.2 mm of rain. There was 3.6 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. 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.
February 15 » Kingdom of Romania establishes its legation in Helsinki.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
November 11 » The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.
Day of death April 29, 1944
The temperature on April 29, 1944 was between 4.5 °C and 11.7 °C and averaged 7.7 °C. There was 1.0 hours of sunshine (7%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I183020.php : accessed October 23, 2026), "Jan Postma (1921-1944)".
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