January 4 » Utah is admitted as the 45th U.S. state.
March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
May 26 » Nicholas II becomes the last Tsar of Imperial Russia.
May 27 » The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10-million in damage.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
August 16 » Skookum Jim Mason, George Carmack and Dawson Charlie discover gold in a tributary of the Klondike River in Canada, setting off the Klondike Gold Rush.
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.
April 20 » The Soviet government creates South Ossetian Autonomous Oblast within Georgian SSR.
May 10 » The United States annexes the Kingman Reef.
June 1 » The Royal Ulster Constabulary is founded.
July 20 » The League of Nations awards mandates of Togoland to France and Tanganyika to the United Kingdom.
August 26 » Greco-Turkish War (1919–22): Turkish army launched what has come to be known to the Turks as the "Great Offensive" (Büyük Taarruz). The major Greek defense positions were overrun.
December 8 » Northern Ireland ceases to be part of the Irish Free State.
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.
May 18 » World War II: Battle of Monte Cassino: Conclusion after seven days of the fourth battle as German paratroopers evacuate Monte Cassino.
July 6 » The Hartford circus fire, one of America's worst fire disasters, kills approximately 168 people and injures over 700 in Hartford, Connecticut.
July 25 » World War II: Operation Spring is one of the bloodiest days for the First Canadian Army during the war.
August 13 » World War II: German troops begin the pillage and razing of Anogeia in Crete that would continue until September 5.
September 17 » World War II: German forces are attacked by the Allies in the Battle of San Marino.
December 16 » World War II: The Battle of the Bulge begins with the surprise offensive of three German armies through the Ardennes forest.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Aartje Helmigs", database, Genealogy Online (https://www.genealogieonline.nl/aartje-helmigs/I34572.php : accessed February 3, 2026), "Willem Koopman (1896-1944)".
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