The temperature on August 16, 1904 was between 9.2 °C and 19.1 °C and averaged 14.8 °C. There was 9.5 hours of sunshine (65%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
April 5 » The first international rugby league match is played between England and an Other Nationalities team (Welsh and Scottish players) in Central Park, Wigan, England.
April 30 » The Louisiana Purchase Exposition World's Fair opens in St. Louis, Missouri.
July 31 » Russo-Japanese War: Battle of Hsimucheng: Units of the Imperial Japanese Army defeat units of the Imperial Russian Army in a strategic confrontation.
October 27 » The first underground New York City Subway line opens, later designated as the IRT Broadway–Seventh Avenue Line.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
December 6 » Theodore Roosevelt articulated his "Corollary" to the Monroe Doctrine, stating that the U.S. would intervene in the Western Hemisphere should Latin American governments prove incapable or unstable.
Day of death June 21, 1975
The temperature on June 21, 1975 was between 13.0 °C and 24.1 °C and averaged 19.1 °C. There was 0.6 mm of rain during 0.5 hours. There was 5.9 hours of sunshine (35%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 5 » The Tasman Bridge in Tasmania, Australia, is struck by the bulk ore carrier Lake Illawarra, killing twelve people.
January 15 » The Alvor Agreement is signed, ending the Angolan War of Independence and giving Angola independence from Portugal.
March 25 » Faisal of Saudi Arabia is shot and killed by a mentally ill nephew.
July 6 » The Comoros declares independence from France.
November 12 » The Comoros joins the United Nations.
December 6 » The Troubles: Fleeing from the police, a Provisional IRA unit takes a British couple hostage in their flat on Balcombe Street, London, beginning a six-day siege.
When copying data from this family tree, please include a reference to the origin: Leo Hemmes, "Family tree Riet", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riet/I50.php : accessed February 5, 2026), "Wilhelmina Frederika Stafleu (1904-1975)".
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