The temperature on May 12, 1920 was between 11.3 °C and 23.5 °C and averaged 15.8 °C. There was 11.1 mm of rain. There was 3.0 hours of sunshine (19%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. 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 10 » The Treaty of Versailles takes effect, officially ending World War I.
January 16 » The League of Nations holds its first council meeting in Paris, France.
January 19 » The United States Senate votes against joining the League of Nations.
February 10 » About 75% of the population in Zone I votes to join Denmark in the 1920 Schleswig plebiscites.
April 28 » Azerbaijan is added to the Soviet Union.
August 26 » The 19th amendment to United States Constitution takes effect, giving women the right to vote.
Day of death July 30, 1980
The temperature on July 30, 1980 was between 12.6 °C and 20.3 °C and averaged 17.5 °C. There was 1.4 mm of rain during 1.5 hours. There was -0.1 hours of sunshine (0%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) 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/I86588.php : accessed February 20, 2026), "Harm Berend Grimmius (1920-1980)".
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