The temperature on May 29, 1890 was about 15.0 °C. The air pressure was 1 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 72%. Source: KNMI
April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
July 1 » Canada and Bermuda are linked by telegraph cable.
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.
November 29 » The Meiji Constitution goes into effect in Japan, and the first Diet convenes.
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 4, 1912
The temperature on November 4, 1912 was between -1.4 °C and 8.4 °C and averaged 4.8 °C. There was 0.5 mm of rain. There was 1.7 hours of sunshine (18%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
May 4 » Italy occupies the Greek island of Rhodes.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
November 27 » Spain declares a protectorate over the north shore of Morocco.
Day of death June 26, 1966
The temperature on June 26, 1966 was between 13.2 °C and 19.5 °C and averaged 15.9 °C. There was 5.8 mm of rain during 3.8 hours. There was 6.0 hours of sunshine (36%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P3667.php : accessed January 3, 2026), "Hattie Mertle Armstrong (1890-1966)".
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