The temperature on March 20, 1921 was between 1.0 °C and 9.9 °C and averaged 5.7 °C. There was 4.1 mm of rain. There was 3.4 hours of sunshine (28%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. 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 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.
March 6 » Portuguese Communist Party is founded as the Portuguese Section of the Communist International.
March 15 » Talaat Pasha, former Grand Vizir of the Ottoman Empire and chief architect of the Armenian Genocide is assassinated in Berlin by a 23-year-old Armenian, Soghomon Tehlirian.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
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.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
Day of death September 19, 1930
The temperature on September 19, 1930 was between 8.3 °C and 17.9 °C and averaged 13.6 °C. There was 10.3 mm of rain during 4.5 hours. There was 3.4 hours of sunshine (27%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 18 » While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
May 1 » "Pluto" is officially proposed for the name of the newly-discovered dwarf planet Pluto by Vesto Slipher in the Lowell Observatory Observation Circular. The name quickly catches on.
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
July 30 » In Montevideo, Uruguay wins the first FIFA World Cup.
August 29 » The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland.
September 27 » Bobby Jones wins the (pre-Masters) Grand Slam of golf.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I269293.php : accessed February 26, 2026), "Johannes Adrianus van Opstal (1921-1930)".
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