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 » League of Nations Covenant enters into force. On January 16 the organization holds its first council meeting, in Paris.
May 5 » Authorities arrest Nicola Sacco and Bartolomeo Vanzetti for alleged robbery and murder.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
August 31 » Polish–Soviet War: A decisive Polish victory in the Battle of Komarów.
September 7 » Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Finnish Air Force, killing both crews.
November 28 » Irish War of Independence: Kilmichael Ambush: The Irish Republican Army ambush a convoy of British Auxiliaries and kill seventeen.
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.
January 7 » U.S. President Jimmy Carter authorizes legislation giving $1.5 billion in loans to bail out the Chrysler Corporation.
January 27 » Through cooperation between the U.S. and Canadian governments, six American diplomats secretly escape hostilities in Iran in the culmination of the Canadian Caper.
March 14 » LOT Flight 7 crashes during final approach near Warsaw, Poland, killing 87 people, including a 14-man American boxing team.
March 27 » The Norwegian oil platform Alexander L. Kielland collapses in the North Sea, killing 123 of its crew of 212.
August 26 » After John Birges plants a bomb at Harvey's Resort Hotel in Stateline, Nevada, in the United States, the FBI inadvertently detonates the bomb during its disarming.
September 30 » Ethernet specifications are published by Xerox working with Intel and Digital Equipment Corporation.
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 January 6, 2026), "Harm Berend Grimmius (1920-1980)".
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