January 1 » The first American college football bowl game, the Rose Bowl between Michigan and Stanford, is held in Pasadena, California.
April 20 » Pierre and Marie Curie refine radium chloride.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
November 21 » The Philadelphia Football Athletics defeated the Kanaweola Athletic Club of Elmira, New York, 39–0, in the first ever professional American football night game.
December 28 » The Syracuse Athletic Club defeated the New York Philadelphians, 5–0, in the first indoor professional football game, which was held at Madison Square Garden.
Day of marriage December 9, 1922
The temperature on December 9, 1922 was between -2.8 °C and 4.6 °C and averaged 1.7 °C. There was 1.0 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 2 Bft (weak wind) 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 5 » The American Birth Control League, forerunner of Planned Parenthood, is incorporated.
June 17 » Portuguese naval aviators Gago Coutinho and Sacadura Cabral complete the first aerial crossing of the South Atlantic.
June 28 » The Irish Civil War begins with the shelling of the Four Courts in Dublin by Free State forces.
June 29 » France grants 1km at Vimy Ridge "freely, and for all time, to the Government of Canada, the free use of the land exempt from all taxes".
August 22 » Michael Collins, Commander-in-chief of the Irish Free State Army, is shot dead in an ambush during the Irish Civil War.
November 1 » Abolition of the Ottoman sultanate: The last sultan of the Ottoman Empire, Mehmed VI, abdicates.
Day of death July 31, 1985
The temperature on July 31, 1985 was between 11.6 °C and 20.2 °C and averaged 15.7 °C. There was -0.1 mm of rain. There was 2.6 hours of sunshine (17%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 4 » The Food and Drug Administration approves a blood test for HIV infection, used since then for screening all blood donations in the United States.
March 20 » Libby Riddles becomes the first woman to win the 1,135-mile Iditarod Trail Sled Dog Race.
May 31 » United States–Canada tornado outbreak: Forty-one tornadoes hit Ohio, Pennsylvania, New York, and Ontario, leaving 76 dead.
June 17 » Space Shuttle program: STS-51-G mission: Space Shuttle Discovery launches carrying Sultan bin Salman bin Abdulaziz Al Saud, the first Arab and first Muslim in space, as a payload specialist.
June 23 » A terrorist bomb explodes at Narita International Airport near Tokyo. An hour later, the same group detonates a second bomb aboard Air India Flight 182, bringing the Boeing 747 down off the coast of Ireland killing all 329 aboard.
August 23 » Hans Tiedge, top counter-spy of West Germany, defects to East Germany.
When copying data from this family tree, please include a reference to the origin: Sake Siegersma, "Family tree Siegersma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-siegersma/I92.php : accessed February 19, 2026), "Hendrikje Egbert "Hendrikje" Dekker (1902-1985)".
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