The temperature on March 25, 1890 was about 8.0 °C. There was 5 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the south-southwest. The airpressure was 74 cm mercury. The atmospheric humidity was 97%. Source: KNMI
April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
July 3 » Idaho is admitted as the 43rd U.S. state.
July 26 » In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 15 » Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of marriage November 20, 1915
The temperature on November 20, 1915 was between -2.8 °C and 3.9 °C and averaged 0.1 °C. There was 5.2 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
June 5 » Denmark amends its constitution to allow women's suffrage.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
September 30 » World War I: Radoje Ljutovac becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.
December 20 » World War I: The last Australian troops are evacuated from Gallipoli.
Day of death October 16, 1959
The temperature on October 16, 1959 was between 5.3 °C and 20.0 °C and averaged 11.9 °C. There was 9.0 hours of sunshine (84%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 4 » Luna 1 becomes the first spacecraft to reach the vicinity of the Moon.
July 1 » Specific values for the international yard, avoirdupois pound and derived units (e.g. inch, mile and ounce) are adopted after agreement between the US, the United Kingdom and other Commonwealth countries.
July 21 » NSSavannah, the first nuclear-powered cargo-passenger ship, is launched as a showcase for Dwight D. Eisenhower's "Atoms for Peace" initiative.
September 18 » Vanguard 3 is launched into Earth orbit.
October 2 » Rod Serling's anthology series The Twilight Zone premieres on CBS. The first episode is “Where Is Everybody?”
November 23 » French President Charles de Gaulle declares in a speech in Strasbourg his vision for "Europe, from the Atlantic to the Urals".
When copying data from this family tree, please include a reference to the origin: Hans Dunning, "Family tree Dunning", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dunning/R4064.php : accessed January 9, 2026), "Aaldrik Hartman (1890-1959)".
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