February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
February 27 » Fußball-Club Bayern München is founded.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
August 16 » The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British. The battle had begun when a force of between 2,000 and 3,000 Boers had surrounded a force of 500 Australians, Rhodesians, Canadians and British soldiers at a supply dump at Brakfontein Drift.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage September 28, 1922
The temperature on September 28, 1922 was between 8.3 °C and 17.8 °C and averaged 13.0 °C. There was 4.6 mm of rain. There was 1.6 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. 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.
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 6 » The Washington Naval Treaty is signed in Washington, D.C., limiting the naval armaments of United States, Britain, Japan, France, and Italy.
April 16 » The Treaty of Rapallo, pursuant to which Germany and the Soviet Union re-establish diplomatic relations, is signed.
April 24 » The first segment of the Imperial Wireless Chain providing wireless telegraphy between Leafield in Oxfordshire, England, and Cairo, Egypt, comes into operation.
June 16 » General election in the Irish Free State: The pro-Treaty Sinn Féin party wins a large majority.
September 9 » The Greco-Turkish War effectively ends with Turkish victory over the Greeks in Smyrna.
November 26 » The Toll of the Sea debuts as the first general release film to use two-tone Technicolor. (The Gulf Between was the first film to do so, but it was not widely distributed.)
When copying data from this family tree, please include a reference to the origin: Monique Lassooij, "Family tree Lassooij -Toussaint - Ammerlaan - Onderwater", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-lassooij/R388.php : accessed February 27, 2026), "Agatha Catharina Maria de Groot (1900-)".
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