The temperature on June 1, 1920 was between 5.9 °C and 17.0 °C and averaged 13.3 °C. There was 0.1 mm of rain. There was 0.7 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) 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.
January 19 » The American Civil Liberties Union (ACLU) is founded.
May 9 » Polish–Soviet War: The Polish army under General Edward Rydz-Śmigły celebrates its capture of Kiev with a victory parade on Khreshchatyk.
July 11 » In the East Prussian plebiscite the local populace decides to remain with Weimar Germany.
August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
August 20 » The first commercial radio station, 8MK (now WWJ), begins operations in Detroit.
November 15 » The Free City of Danzig is established.
Day of marriage September 21, 1944
The temperature on September 21, 1944 was between 8.1 °C and 19.8 °C and averaged 13.8 °C. There was 4.1 hours of sunshine (33%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. 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.
February 24 » Merrill's Marauders: The Marauders begin their 1,000-mile journey through Japanese-occupied Burma.
March 4 » World War II: After the success of Big Week, the USAAF begins a daylight bombing campaign of Berlin.
June 12 » World War II: Operation Overlord: American paratroopers of the 101st Airborne Division secure the town of Carentan, Normandy, France.
July 9 » World War II: American forces take Saipan, bringing the Japanese archipelago within range of B-29 raids, and causing the downfall of the Tojo government.
August 2 » World War II: The largest trade convoy of the world wars arrives safely in the Western Approaches.
October 25 » Second World War: Heinrich Himmler orders a crackdown on the Edelweiss Pirates, a loosely organized youth culture in Nazi Germany that had assisted army deserters and others to hide from the Third Reich.
Day of death December 27, 1999
The temperature on December 27, 1999 was between -0.2 °C and 7.2 °C and averaged 3.8 °C. There was 11.1 mm of rain during 4.0 hours. There was 2.4 hours of sunshine (31%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
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/I187159.php : accessed February 15, 2026), "Andries Poelstra (1920-1999)".
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