March 1 » Henri Becquerel discovers radioactive decay.
April 6 » In Athens, the opening of the first modern Olympic Games is celebrated, 1,500 years after the original games are banned by Roman emperor Theodosius I.
August 27 » Anglo-Zanzibar War: The shortest war in world history (09:02 to 09:40), between the United Kingdom and Zanzibar.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
November 17 » The Western Pennsylvania Hockey League, which later became the first ice hockey league to openly trade and hire players, began play at Pittsburgh's Schenley Park Casino.
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 17, 1922
The temperature on November 17, 1922 was between 6.2 °C and 10.0 °C and averaged 8.1 °C. There was 0.3 mm of rain. There was 0.8 hours of sunshine (9%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
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.
February 6 » The Washington Naval Treaty is signed in Washington, D.C., limiting the naval armaments of United States, Britain, Japan, France, and Italy.
February 8 » United States President Warren G. Harding introduces the first radio set in the White House.
February 9 » Brazil becomes a member of the Berne Convention copyright treaty.
February 27 » A challenge to the Nineteenth Amendment to the United States Constitution, allowing women the right to vote, is rebuffed by the Supreme Court of the United States in Leser v. Garnett.
July 15 » Japanese Communist Party is established in Japan.
November 26 » The Toll of the Sea debuts as the first general release film to use two-tone Technicolor. (The Gulf Between was the first film to do so, but it was not widely distributed.)
Day of death October 30, 1944
The temperature on October 30, 1944 was between 0.6 °C and 8.9 °C and averaged 6.3 °C. There was 4.8 mm of rain during 5.3 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 26 » Heinrich Kreipe is captured by Allied commandos in occupied Crete.
June 13 » World War II: Germany launches the first V1 Flying Bomb attack on England. Only four of the eleven bombs strike their targets.
July 6 » The Hartford circus fire, one of America's worst fire disasters, kills approximately 168 people and injures over 700 in Hartford, Connecticut.
August 6 » The Warsaw Uprising occurs on August 1. It is brutally suppressed and all able-bodied men in Kraków are detained afterwards to prevent a similar uprising, the Kraków Uprising, that was planned but never carried out.
September 6 » World War II: Soviet forces capture the city of Tartu, Estonia.
October 25 » Second World War: The USSTang under Richard O'Kane (the top American submarine ace of the war) is sunk by the ship's own malfunctioning torpedo.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Jan Borren", database, Genealogy Online (https://www.genealogieonline.nl/jan-borren/I34572.php : accessed January 4, 2026), "Willem Koopman (1896-1944)".
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