January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
May 26 » Nicholas II becomes the last Tsar of Imperial Russia.
July 28 » The city of Miami, Florida is incorporated.
August 17 » Bridget Driscoll became the first recorded case of a pedestrian killed in a collision with a motor car in the United Kingdom.
December 14 » The Glasgow Underground Railway is opened by the Glasgow District Subway Company.
December 30 » Canadian ice hockey player Ernie McLea scores the first hat-trick in Stanley Cup play, and the Cup-winning goal as the Montreal Victorias defeat the Winnipeg Victorias 6–5.
Day of marriage November 13, 1920
The temperature on November 13, 1920 was between 0.5 °C and 6.7 °C and averaged 3.4 °C. There was 1.9 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-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 14 » The League of Women Voters is founded in Chicago.
March 8 » The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established.
June 15 » Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.
August 20 » The National Football League is organized as the American Professional Football Conference in Canton, Ohio
October 25 » After 74 days on hunger strike in Brixton Prison, England, the Sinn Féin Lord Mayor of Cork, Terence MacSwiney dies.
November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
When copying data from this family tree, please include a reference to the origin: J. Post, "Descendants Grootenboer", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-grootenboer/I34232.php : accessed February 6, 2026), "Arie van Maastricht (1896-????)".
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