The temperature on May 23, 1921 was between 9.2 °C and 25.1 °C and averaged 17.2 °C. There was 14.0 hours of sunshine (87%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. 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 27 » The International Working Union of Socialist Parties is founded in Vienna.
March 20 » The Upper Silesia plebiscite was a plebiscite mandated by the Versailles Treaty to determine a section of the border between Weimar Germany and Poland.
May 31 » The Tulsa race massacre kills at least 39, but other estimates of black fatalities vary from 55 to about 300.
June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of marriage April 29, 1947
The temperature on April 29, 1947 was between 7.0 °C and 11.7 °C and averaged 8.9 °C. There was 0.9 mm of rain during 1.2 hours. There was 1.6 hours of sunshine (11%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 9 » The Glazier–Higgins–Woodward tornadoes kill 181 and injure 970 in Texas, Oklahoma, and Kansas.
May 1 » Portella della Ginestra massacre against May Day celebrations in Sicily by the bandit and separatist leader Salvatore Giuliano where 11 persons are killed and 33 wounded.
May 22 » Cold War: The Truman Doctrine goes into effect, aiding Turkey and Greece.
October 14 » Chuck Yeager becomes the first person to exceed the speed of sound.
November 17 » American scientists John Bardeen and Walter Houser Brattain observe the basic principles of the transistor, a key element for the electronics revolution of the 20th century.
December 6 » The Everglades National Park in Florida is dedicated.
Day of death February 21, 2002
The temperature on February 21, 2002 was between 0.9 °C and 6.9 °C and averaged 3.9 °C. There was 1.9 mm of rain during 2.3 hours. There was 8.2 hours of sunshine (80%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Monday, August 3, 1998 to Monday, July 22, 2002 the cabinet Kok II, with W. Kok (PvdA) as prime minister.
In The Netherlands , there was from Monday, July 22, 2002 to Tuesday, May 27, 2003 the cabinet Balkenende I, with Mr.dr. J.P. Balkenende (CDA) 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/I75291.php : accessed December 26, 2025), "Janna Knol (1921-2002)".
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