April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 20 » Pierre and Marie Curie refine radium chloride.
June 24 » King Edward VII of the United Kingdom develops appendicitis, delaying his coronation.
August 22 » Cadillac Motor Company is founded.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
December 14 » The Commercial Pacific Cable Company lays the first Pacific telegraph cable, from San Francisco to Honolulu.
Day of marriage May 26, 1923
The temperature on May 26, 1923 was between 3.5 °C and 14.9 °C and averaged 10.1 °C. There was 4.8 hours of sunshine (30%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 1 » Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS.
June 9 » Bulgaria's military takes over the government in a coup.
August 18 » First British Track and Field championships for women, London.
September 13 » Following a military coup in Spain, Miguel Primo de Rivera takes over, setting up a dictatorship.
September 26 » The German government accepts the occupation of the Ruhr.
October 22 » The royalist Leonardopoulos–Gargalidis coup d'état attempt fails in Greece, discrediting the monarchy and paving the way for the establishment of the Second Hellenic Republic.
Day of death February 21, 1980
The temperature on February 21, 1980 was between 1.4 °C and 10.3 °C and averaged 4.8 °C. There was 8.9 hours of sunshine (86%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
March 27 » Silver Thursday: A steep fall in silver prices, resulting from the Hunt Brothers attempting to corner the market in silver, leads to panic on commodity and futures exchanges.
April 30 » Beatrix is inaugurated as Queen of the Netherlands following the abdication of Juliana.
June 3 » The 1980 Grand Island tornado outbreak hits Nebraska, causing five deaths and $300million (equivalent to $931million in 2019) worth of damage.
July 5 » Swedish tennis player Björn Borg wins his fifth Wimbledon final and becomes the first male tennis player to win the championships five times in a row (1976–1980).
September 30 » Ethernet specifications are published by Xerox working with Intel and Digital Equipment Corporation.
October 9 » Pope John Paul II greets the Dalai Lama during a private audience in Vatican City.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I133534.php : accessed October 20, 2026), "Jan Kuipers (1902-1980)".
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