June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
July 28 » The city of Miami, Florida is incorporated.
August 27 » Anglo-Zanzibar War: The shortest war in world history (09:02 to 09:40), between the United Kingdom and Zanzibar.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
Day of death January 16, 1961
The temperature on January 16, 1961 was between -2.4 °C and 2.5 °C and averaged -0.8 °C. There was 0.4 mm of rain. There was 7.0 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 3 » A protest by agricultural workers in Baixa de Cassanje, Portuguese Angola, turns into a revolt, opening the Angolan War of Independence, the first of the Portuguese Colonial Wars.
April 30 » K-19, the first Soviet nuclear submarine equipped with nuclear missiles, is commissioned.
May 31 » The South African Constitution of 1961 becomes effective, thus creating the Republic of South Africa, which remains outside the Commonwealth of Nations until 1 June 1994, when South Africa is returned to Commonwealth membership.
July 23 » The Sandinista National Liberation Front is founded in Nicaragua.
September 12 » The African and Malagasy Union is founded.
October 1 » The United States Defense Intelligence Agency is formed, becoming the country's first centralized military intelligence organization.
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/I106916.php : accessed May 23, 2026), "Geertje Agina Sipsma (1896-1961)".
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