February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
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.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
October 9 » The Cook Islands become a territory of the United Kingdom.
Day of death 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.
June 18 » Checker Taxi puts its first taxi on the streets.
June 27 » Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH.4B biplane.
July 24 » The Treaty of Lausanne, settling the boundaries of modern Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in World War I.
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.
September 12 » Southern Rhodesia, today called Zimbabwe, is annexed by the United Kingdom.
September 26 » The German government accepts the occupation of the Ruhr.
When copying data from this family tree, please include a reference to the origin: Eric Jonkers, "Family tree Jonkers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jonkers/P181.php : accessed March 6, 2026), "Maurice Joseph Leon Marie Ludovic Somers (1900-1923)".
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