January 28 » Walter Arnold of East Peckham, Kent, becomes the first person to be convicted of speeding. He was fined one shilling, plus costs, for speeding at 8mph (13km/h), thereby exceeding the contemporary speed limit of 2mph (3.2km/h).
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
November 27 » Also sprach Zarathustra by Richard Strauss is first performed.
Day of marriage January 19, 1921
The temperature on January 19, 1921 was between 2.2 °C and 7.4 °C and averaged 4.8 °C. There was 4.0 mm of rain. There was 2.5 hours of sunshine (30%). The average windspeed was 6 Bft (strong wind) and was prevailing from the 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 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
March 8 » Spanish Prime Minister Eduardo Dato Iradier is assassinated while exiting the parliament building in Madrid.
March 20 » The Upper Silesia plebiscite was a plebiscite mandated by the Versailles Treaty to determine a section of the border between Weimar Germany and Poland.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentage of Gisbert Jansen Snapper", database, Genealogy Online (https://www.genealogieonline.nl/gisbert-jansen-snapper/I45681.php : accessed January 27, 2026), "Gerrit Dokter (1896-????)".
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