April 20 » Pierre and Marie Curie refine radium chloride.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
August 9 » Edward VII and Alexandra of Denmark are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
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 October 15, 1921
The temperature on October 15, 1921 was between 3.2 °C and 16.5 °C and averaged 9.7 °C. There was 4.4 hours of sunshine (41%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
May 3 » West Virginia becomes the first state to legislate a broad sales tax, but does not implement it until a number of years later due to enforcement issues.
June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
July 11 » A truce in the Irish War of Independence comes into effect.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
Day of death January 1, 1985
The temperature on January 1, 1985 was between 0.5 °C and 6.3 °C and averaged 3.6 °C. There was 5.9 mm of rain during 5.5 hours. There was 0.3 hours of sunshine (4%). The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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.
May 5 » Ronald Reagan visits the military cemetery at Bitburg and the site of the Bergen-Belsen concentration camp, where he makes a speech.
July 13 » Vice President George H. W. Bush becomes the Acting President for the day when President Ronald Reagan undergoes surgery to remove polyps from his colon.
July 19 » The Val di Stava dam collapses killing 268 people in Val di Stava, Italy.
August 22 » British Airtours Flight 28M suffers an engine fire during takeoff at Manchester Airport. The pilots abort but due to inefficient evacuation procedures 55 people are killed, mostly from smoke inhalation.
November 15 » A research assistant is injured when a package from the Unabomber addressed to a University of Michigan professor explodes.
November 19 » Cold War: In Geneva, U.S. President Ronald Reagan and Soviet Union General Secretary Mikhail Gorbachev meet for the first time.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I7390.php : accessed March 16, 2026), "Grietje Hartog (1902-1985)".
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