February 20 » The legislature of Hawaii Territory convenes for the first time.
March 2 » The U.S. Congress passes the Platt Amendment limiting the autonomy of Cuba, as a condition of the withdrawal of American troops.
June 17 » The College Board introduces its first standardized test, the forerunner to the SAT.
August 5 » Peter O'Connor sets the first IAAF recognised long jump world record of 24ft 11.75in (7.6137m), a record that would stand for 20 years.
September 14 » U.S. President William McKinley dies after being mortally wounded on September 6 by anarchist Leon Czolgosz and is succeeded by Vice President Theodore Roosevelt.
September 28 » Philippine–American War: Filipino guerrillas kill more than forty American soldiers while losing 28 of their own.
Day of marriage August 4, 1921
The temperature on August 4, 1921 was between 10.2 °C and 20.9 °C and averaged 15.3 °C. There was 6.2 mm of rain. There was 6.3 hours of sunshine (41%). The average windspeed was 3 Bft (moderate breeze) 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.
February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
September 11 » Nahalal, the first moshav in Palestine, is settled as part of a Zionist plan of creating a Jewish state, later to be Israel.
October 8 » KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.
October 21 » President Warren G. Harding delivers the first speech by a sitting U.S. President against lynching in the deep South.
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/I132676.php : accessed October 20, 2026), "Klaaske de Jong (1901-)".
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