January 13 » First Italo-Ethiopian War: the war's opening battle, the Battle of Coatit, occurs; it is an Italian victory.
April 17 » The Treaty of Shimonoseki between China and Japan is signed. This marks the end of the First Sino-Japanese War, and the defeated Qing Empire is forced to renounce its claims on Korea and to concede the southern portion of the Fengtien province, Taiwan and the Pescadores Islands to Japan.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage August 10, 1921
The temperature on August 10, 1921 was between 6.3 °C and 21.5 °C and averaged 15.1 °C. There was 0.4 mm of rain. There was 3.7 hours of sunshine (25%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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 12 » Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.
February 21 » Rezā Shāh takes control of Tehran during a successful coup.
February 27 » The International Working Union of Socialist Parties is founded in Vienna.
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 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.
September 11 » Nahalal, the first moshav in Palestine, is settled as part of a Zionist plan of creating a Jewish state, later to be Israel.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I39277.php : accessed February 14, 2026), "Pieter Wouter van der Sar (1895-????)".
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