February 27 » The British Labour Party is founded.
March 18 » AFC Ajax Amsterdam, The Netherlands's biggest and most successful football club, was founded.
April 14 » The Exposition Universelle begins.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
July 9 » The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
Day of marriage June 17, 1921
The temperature on June 17, 1921 was between 3.5 °C and 21.7 °C and averaged 14.4 °C. There was 12.6 hours of sunshine (75%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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.
May 31 » The Tulsa race massacre kills at least 39, but other estimates of black fatalities vary from 55 to about 300.
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 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
September 5 » Roscoe "Fatty" Arbuckle party in San Francisco ends with the death of the young actress Virginia Rappe: One of the first scandals of the Hollywood community.
When copying data from this family tree, please include a reference to the origin: J. Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_jacobs/I3352.php : accessed January 8, 2026), "Michel Petrus Antonius van den Wildenberg (1900-)".
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