The temperature on May 20, 1921 was between 5.7 °C and 19.3 °C and averaged 12.7 °C. There was 9.6 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) 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.
February 21 » Rezā Shāh takes control of Tehran during a successful coup.
June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
October 26 » The Chicago Theatre opens.
Day of death May 15, 1975
The temperature on May 15, 1975 was between 8.1 °C and 16.6 °C and averaged 12.3 °C. There was 1.9 hours of sunshine (12%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
April 21 » Vietnam War: President of South Vietnam Nguyễn Văn Thiệu flees Saigon, as Xuân Lộc, the last South Vietnamese outpost blocking a direct North Vietnamese assault on Saigon, falls.
May 27 » Dibbles Bridge coach crash near Grassington, in North Yorkshire, England, kills 33 – the highest ever death toll in a road accident in the United Kingdom.
July 5 » Cape Verde gains its independence from Portugal.
September 8 » Gays in the military: US Air Force Tech Sergeant Leonard Matlovich, a decorated veteran of the Vietnam War, appears in his Air Force uniform on the cover of Time magazine with the headline "I Am A Homosexual". He is given a general discharge, later upgraded to honorable.
September 22 » Sara Jane Moore tries to assassinate U.S. President Gerald Ford, but is foiled by the Secret Service.
September 29 » WGPR becomes the first black-owned-and-operated television station in the US.
When copying data from this family tree, please include a reference to the origin: Ben Wit, "Family tree Wit en andere families West-Friesland", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-wit/I1559.php : accessed January 16, 2026), "Jan Sleutel (1921-1975)".
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