January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
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.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of death September 8, 1961
The temperature on September 8, 1961 was between 10.7 °C and 18.8 °C and averaged 14.6 °C. There was 0.1 mm of rain during 0.2 hours. There was 0.8 hours of sunshine (6%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 23 » The Portuguese luxury cruise ship Santa Maria is hijacked by opponents of the Estado Novo regime with the intention of waging war until dictator António de Oliveira Salazar is overthrown.
February 4 » The Angolan War of Independence and the greater Portuguese Colonial War begin.
March 1 » Uganda becomes self-governing and holds its first elections.
May 5 » Alan Shepard becomes the first American to travel into outer space, on a sub-orbital flight.
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
July 4 » On its maiden voyage, the Soviet nuclear-powered submarine K-19 suffers a complete loss of coolant to its reactor. The crew are able to effect repairs, but 22 of them die of radiation poisoning over the following two years.
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/I187771.php : accessed October 6, 2026), "Romkje van der Werff (1902-1961)".
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