January 31 » Czechoslav Trade Union Association is founded in Prague.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage June 20, 1923
The temperature on June 20, 1923 was between 6.3 °C and 14.1 °C and averaged 10.5 °C. There was 0.2 mm of rain. There was 0.7 hours of sunshine (4%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. 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.
April 15 » Insulin becomes generally available for use by people with diabetes.
May 26 » The first 24 Hours of Le Mans was held and has since been run annually in June.
August 16 » The United Kingdom gives the name "Ross Dependency" to part of its claimed Antarctic territory and makes the Governor-General of the Dominion of New Zealand its administrator.
October 6 » The Turkish National Movement enters Constantinople.
October 13 » Ankara becomes the capital of Turkey.
October 16 » The Walt Disney Company is founded.
Day of death December 10, 1974
The temperature on December 10, 1974 was between 1.9 °C and 6.3 °C and averaged 4.6 °C. There was 5.3 mm of rain during 3.8 hours. There was 1.3 hours of sunshine (17%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
When copying data from this family tree, please include a reference to the origin: Agatha Jacoba Maria Lindeboom-Kleef, "Family tree Kleef, Reus, Lindeboom,Quax", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kleef/I158.php : accessed February 26, 2026), "Catharina Clasina Kleef (1897-1974)".
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