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.
August 6 » At Auburn Prison in New York, murderer William Kemmler becomes the first person to be executed by electric chair.
October 1 » Yosemite National Park is established by the U.S. Congress.
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 August 12, 1921
The temperature on August 12, 1921 was between 8.6 °C and 21.4 °C and averaged 15.1 °C. There was 4.6 hours of sunshine (31%). The average windspeed was 3 Bft (moderate breeze) 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.
January 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
September 7 » The Legion of Mary, the largest apostolic organization of lay people in the Catholic Church, is founded in Dublin, Ireland.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
October 5 » The World Series is the first to be broadcast on radio.
Day of death February 4, 1970
The temperature on February 4, 1970 was between 1.3 °C and 6.1 °C and averaged 3.6 °C. There was 0.9 mm of rain during 0.7 hours. There was 1.0 hours of sunshine (11%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
February 11 » Japan launches Ohsumi, becoming the fourth nation to put an object into orbit using its own booster.
March 26 » South Vietnamese President Nguyễn Văn Thiệu implements a land reform program to solve the problem of land tenancy.
April 12 » Soviet submarine K-8, carrying four nuclear torpedoes, sinks in the Bay of Biscay four days after a fire on board.
May 14 » Andreas Baader is freed from custody by Ulrike Meinhof, Gudrun Ensslin and others, a pivotal moment in the formation of the Red Army Faction.
June 4 » Tonga gains independence from the United Kingdom.
September 5 » Jochen Rindt becomes the only driver to posthumously win the Formula One World Drivers' Championship (in 1970), after being killed in practice for the Italian Grand Prix.
When copying data from this family tree, please include a reference to the origin: Dirk Ham, "Family tree Ham en Dallinga", database, Genealogy Online (https://www.genealogieonline.nl/ham-stamboom/I8678.php : accessed January 30, 2026), "Willem Soolsma (1890-1970)".
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