February 22 » Filipino forces led by General Antonio Luna launch counterattacks for the first time against the American forces during the Philippine–American War. The Filipinos fail to regain Manila from the Americans.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
July 11 » Fiat founded by Giovanni Agnelli in Turin, Italy.
July 29 » The First Hague Convention is signed.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
December 11 » Second Boer War: In the Battle of Magersfontein the Boers commanded by general Piet Cronjé inflict a defeat on the forces of the British Empire commanded by Lord Methuen trying to relieve the Siege of Kimberley.
Day of marriage April 25, 1931
The temperature on April 25, 1931 was between 7.5 °C and 14.4 °C and averaged 10.0 °C. There was 5.5 mm of rain during 4.3 hours. There was 0.6 hours of sunshine (4%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 21 » Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia.
February 13 » The British Raj completes its transfer from Calcutta to New Delhi.
March 5 » The British Raj: Gandhi–Irwin Pact is signed.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
March 26 » Swissair is founded as the national airline of Switzerland.
October 1 » Clara Campoamor persuades the Constituent Cortes to enfranchise women in Spain's new constitution.
Day of death March 13, 1954
The temperature on March 13, 1954 was between 1.3 °C and 6.3 °C and averaged 3.1 °C. There was 4.2 hours of sunshine (36%). The partly clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the east-northeast. Source: KNMI
February 15 » Canada and the United States agree to construct the Distant Early Warning Line, a system of radar stations in the far northern Arctic regions of Canada and Alaska.
February 23 » The first mass inoculation of children against polio with the Salk vaccine begins in Pittsburgh.
April 1 » United States President Dwight D. Eisenhower authorizes the creation of the United States Air Force Academy in Colorado.
April 8 » A Royal Canadian Air Force Canadair Harvard collides with a Trans-Canada Airlines Canadair North Star over Moose Jaw, Saskatchewan, killing 37 people.
October 15 » Hurricane Hazel devastates the eastern seaboard of North America, killing 95 and causing massive floods as far north as Toronto.
October 18 » Texas Instruments announces the first transistor radio.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I96844.php : accessed February 22, 2026), "Otto Groote (1899-1954)".
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