March 16 » In Melbourne the representatives of five colonies adopted a constitution, which would become the basis of the Commonwealth of Australia.
April 20 » U.S. President William McKinley signed a joint resolution to Congress for declaration of war against Spain, beginning the Spanish–American War.
June 11 » The Hundred Days' Reform, a planned movement to reform social, political, and educational institutions in China, is started by the Guangxu Emperor, but is suspended by Empress Dowager Cixi after 104 days. (The failed reform led to the abolition of the Imperial examination in 1905.)
July 7 » US President William McKinley signs the Newlands Resolution annexing Hawaii as a territory of the United States.
August 23 » The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of marriage January 31, 1920
The temperature on January 31, 1920 was between 1.1 °C and 11.2 °C and averaged 6.1 °C. There was 2.6 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-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 19 » The American Civil Liberties Union (ACLU) is founded.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
May 2 » The first game of the Negro National League baseball is played in Indianapolis.
July 15 » The Polish Parliament establishes Silesian Voivodeship before the Polish-German plebiscite.
August 19 » The Tambov Rebellion breaks out, in response to the Bolshevik policy of Prodrazvyorstka.
August 26 » The 19th amendment to United States Constitution takes effect, giving women the right to vote.
Day of death November 9, 1969
The temperature on November 9, 1969 was between 4.8 °C and 11.3 °C and averaged 7.5 °C. There was 7.2 mm of rain during 4.3 hours. There was 0.3 hours of sunshine (3%). The heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
January 14 » USS Enterprise fire: An accidental explosion aboard the USSEnterprise near Hawaii kills 28 people.
April 22 » The formation of the Communist Party of India (Marxist-Leninist) is announced at a mass rally in Calcutta.
July 19 » Chappaquiddick incident: U.S. Senator Ted Kennedy crashes his car into a tidal pond at Chappaquiddick Island, Massachusetts, killing his passenger Mary Jo Kopechne.
September 1 » Trần Thiện Khiêm becomes Prime Minister of South Vietnam under President Nguyễn Văn Thiệu.
September 9 » In Canada, the Official Languages Act comes into force, making French equal to English throughout the Federal government.
December 4 » Black Panther Party members Fred Hampton and Mark Clark are shot and killed during a raid by 14 Chicago police officers.
When copying data from this family tree, please include a reference to the origin: Bert Grooten, "Family tree Grooten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-grooten/I207.php : accessed February 12, 2026), "Ale Grooten (1898-1969)".
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