The temperature on August 19, 1917 was between 12.6 °C and 20.6 °C and averaged 15.9 °C. There was 0.6 mm of rain. There was 7.5 hours of sunshine (52%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 2 » The enactment of the Jones–Shafroth Act grants Puerto Ricans United States citizenship.
March 16 » World War I: A German auxiliary cruiser is sunk in the Action of 16 March 1917.
April 12 » World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
May 18 » World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription.
June 5 » World War I: Conscription begins in the United States as "Army registration day".
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of death March 21, 1925
The temperature on March 21, 1925 was between -1.5 °C and 7.9 °C and averaged 2.8 °C. There was 5.3 mm of rain. There was 6.7 hours of sunshine (55%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
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.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
February 15 » The 1925 serum run to Nome: The second delivery of serum arrives in Nome, Alaska.
April 10 » The Great Gatsby by F. Scott Fitzgerald is first published in New York City, by Charles Scribner's Sons.
April 26 » Paul von Hindenburg defeats Wilhelm Marx in the second round of the German presidential election to become the first directly elected head of state of the Weimar Republic.
May 14 » Virginia Woolf's novel Mrs Dalloway is published.
July 10 » Scopes Trial: In Dayton, Tennessee, the so-called "Monkey Trial" begins of John T. Scopes, a young high school science teacher accused of teaching evolution in violation of the Butler Act.
November 5 » Secret agent Sidney Reilly, the first "super-spy" of the 20th century, is executed by the OGPU, the secret police of the Soviet Union.
When copying data from this family tree, please include a reference to the origin: Peter de Groot, "Family tree De Groot en Jansen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-groot-en-jansen/I4033.php : accessed August 8, 2025), " (1917-1925)".
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