March 16 » In Melbourne the representatives of five colonies adopted a constitution, which would become the basis of the Commonwealth of Australia.
June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
June 27 » The first solo circumnavigation of the globe is completed by Joshua Slocum from Briar Island, Nova Scotia.
July 4 » En route from New York to Le Havre, the SS La Bourgogne collides with another ship and sinks off the coast of Sable Island, with the loss of 549 lives.
August 29 » The Goodyear tire company is founded.
Day of marriage September 20, 1923
The temperature on September 20, 1923 was between 7.1 °C and 14.6 °C and averaged 10.4 °C. There was 17.2 mm of rain. There was 5.2 hours of sunshine (42%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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.
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
February 16 » Howard Carter unseals the burial chamber of Pharaoh Tutankhamun.
June 27 » Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH.4B biplane.
August 23 » Captain Lowell Smith and Lieutenant John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours.
September 7 » The International Criminal Police Organization (INTERPOL) is formed.
October 22 » The royalist Leonardopoulos–Gargalidis coup d'état attempt fails in Greece, discrediting the monarchy and paving the way for the establishment of the Second Hellenic Republic.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I110879.php : accessed December 27, 2025), "Richtje Postma (1898-????)".
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