February 9 » The Davis Cup competition is established.
May 17 » Second Boer War: British troops relieve Mafeking.
May 17 » The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
June 18 » Empress Dowager Cixi of China orders all foreigners killed, including foreign diplomats and their families.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage April 19, 1924
The temperature on April 19, 1924 was between 5.8 °C and 11.1 °C and averaged 8.3 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 25 » The 1924 Winter Olympics opens in Chamonix, in the French Alps, inaugurating the Winter Olympic Games.
March 3 » The 407-year-old Islamic caliphate is abolished, when Caliph Abdülmecid II of the Ottoman Caliphate is deposed. The last remnant of the old regime gives way to the reformed Turkey of Kemal Atatürk.
June 2 » U.S. President Calvin Coolidge signs the Indian Citizenship Act into law, granting citizenship to all Native Americans born within the territorial limits of the United States.
September 9 » Hanapepe massacre occurs on Kauai, Hawaii.
September 28 » The first aerial circumnavigation is completed by a team from the US Army.
December 19 » The last Rolls-Royce Silver Ghost is sold in London, England.
Day of death August 31, 1956
The temperature on August 31, 1956 was between 3.8 °C and 16.1 °C and averaged 11.0 °C. There was 10.2 hours of sunshine (74%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I337291.php : accessed February 26, 2026), "Saapke de Boer (1900-1956)".
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