February 16 » Iceland's first football club, Knattspyrnufélag Reykjavíkur, is founded.
March 6 » Bayer registers "Aspirin" as a trademark.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
March 31 » Malolos, capital of the First Philippine Republic, is captured by American forces.
July 29 » The First Hague Convention is signed.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
Day of marriage February 12, 1921
The temperature on February 12, 1921 was between -1.5 °C and 7.5 °C and averaged 3.5 °C. There was 0.8 mm of rain. There was 4.9 hours of sunshine (50%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
January 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
January 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
July 11 » A truce in the Irish War of Independence comes into effect.
July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of death May 1, 1928
The temperature on May 1, 1928 was between 7.9 °C and 17.0 °C and averaged 12.6 °C. There was 3.2 hours of sunshine (22%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
June 8 » Second Northern Expedition: The National Revolutionary Army captures Peking, whose name is changed to Beijing ("Northern Capital").
September 18 » Juan de la Cierva makes the first autogyro crossing of the English Channel.
October 22 » Phi Sigma Alpha fraternity is founded at the University of Puerto Rico.
November 12 » SSVestris sinks approximately 200 miles (320km) off Hampton Roads, Virginia, killing at least 110 passengers, mostly women and children who die after the vessel is abandoned.
November 22 » The premier performance of Ravel's Boléro takes place in Paris.
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/I79818.php : accessed December 27, 2025), "Trientje van Dijk (1899-1928)".
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