January 4 » Utah is admitted as the 45th U.S. state.
March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
August 16 » Skookum Jim Mason, George Carmack and Dawson Charlie discover gold in a tributary of the Klondike River in Canada, setting off the Klondike Gold Rush.
Day of marriage April 30, 1921
The temperature on April 30, 1921 was between 6.8 °C and 20.2 °C and averaged 13.7 °C. There was 12.0 hours of sunshine (81%). The average windspeed was 3 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.
March 1 » The Australian cricket team captained by Warwick Armstrong becomes the first team to complete a whitewash of The Ashes, something that would not be repeated for 86 years.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of death March 11, 1954
The temperature on March 11, 1954 was between -0.5 °C and 14.8 °C and averaged 5.7 °C. There was 0.1 mm of rain. There was 4.2 hours of sunshine (36%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
February 10 » U.S. President Dwight D. Eisenhower warns against United States intervention in Vietnam.
February 28 » The first color television sets using the NTSC standard are offered for sale to the general public.
April 26 » The Geneva Conference, an effort to restore peace in Indochina and Korea, begins.
June 18 » Carlos Castillo Armas leads an invasion force across the Guatemalan border, setting in motion the 1954 Guatemalan coup d'état.
June 27 » The FIFA World Cup quarterfinal match between Hungary and Brazil, highly anticipated to be exciting, instead turns violent, with three players ejected and further fighting continuing after the game.
September 3 » The People's Liberation Army begins shelling the Republic of China-controlled islands of Quemoy, starting the First Taiwan Strait Crisis.
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/I136957.php : accessed February 15, 2026), "Hendrik van der Kooy (1896-1954)".
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