The temperature on September 16, 1920 was between 11.0 °C and 16.7 °C and averaged 13.9 °C. There was 2.5 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
June 15 » Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.
August 16 » Polish–Soviet War: The Battle of Radzymin concludes; the Soviet Red Army is forced to turn away from Warsaw.
August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
August 20 » The first commercial radio station, 8MK (now WWJ), begins operations in Detroit.
October 14 » Finland and Soviet Russia sign the Treaty of Tartu, exchanging some territories.
Day of death July 22, 2001
The temperature on July 22, 2001 was between 14.4 °C and 24.5 °C and averaged 19.3 °C. There was 0.2 mm of rain during 0.5 hours. There was 8.7 hours of sunshine (54%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
July 17 » Concorde is brought back into service nearly a year after the July 2000 crash.
July 24 » The Bandaranaike Airport attack is carried out by 14 Tamil Tiger commandos. Eleven civilian and military aircraft are destroyed and 15 are damaged. All 14 commandos are shot dead, while seven soldiers from the Sri Lanka Air Force are killed. In addition, three civilians and an engineer die. This incident slowed the Sri Lankan economy.
September 12 » Ansett Australia, Australia's first commercial interstate airline, collapses due to increased strain on the international airline industry, leaving 10,000 people unemployed.
September 17 » The New York Stock Exchange reopens for trading after the September 11 attacks, the longest closure since the Great Depression.
November 12 » War in Afghanistan: Taliban forces abandon Kabul, ahead of advancing Afghan Northern Alliance troops.
December 19 » A record high barometric pressure of 1085.6 hPa (32.06 inHg) is recorded at Tosontsengel, Khövsgöl, Mongolia.
When copying data from this family tree, please include a reference to the origin: H. Grevinga, "Family tree Grevinga", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-grevinga/I211.php : accessed March 1, 2026), "jan willem "jan" mengerink (1920-2001)".
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