The temperature on April 2, 1918 was between 1.2 °C and 12.6 °C and averaged 6.9 °C. There was 7.1 hours of sunshine (55%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 25 » The Belarusian People's Republic is established.
May 2 » General Motors acquires the Chevrolet Motor Company of Delaware.
July 26 » Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.
September 29 » The Hindenburg Line is broken by an Allied attack.
December 14 » Portuguese President Sidónio Pais is assassinated.
December 28 » Constance Markievicz, while detained in Holloway prison, became the first woman to be elected MP to the British House of Commons.
Day of marriage August 30, 1947
The temperature on August 30, 1947 was between 11.3 °C and 23.1 °C and averaged 17.1 °C. There was 12.4 hours of sunshine (90%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
March 17 » First flight of the B-45 Tornado strategic bomber.
May 22 » Cold War: The Truman Doctrine goes into effect, aiding Turkey and Greece.
July 4 » The "Indian Independence Bill" is presented before the British House of Commons, proposing the independence of the Provinces of British India into two sovereign countries: India and Pakistan.
September 9 » First case of a computer bug being found: A moth lodges in a relay of a Harvard Mark II computer at Harvard University.
November 25 » New Zealand ratifies the Statute of Westminster and thus becomes independent of legislative control by the United Kingdom.
December 6 » The Everglades National Park in Florida is dedicated.
Day of death August 25, 1973
The temperature on August 25, 1973 was between 9.0 °C and 22.2 °C and averaged 15.8 °C. There was 6.6 hours of sunshine (47%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
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 1 » Denmark, Ireland and the United Kingdom are admitted into the European Economic Community.
July 29 » Driver Roger Williamson is killed during the Dutch Grand Prix, after a suspected tire failure causes his car to pitch into the barriers at high speed.
August 2 » A flash fire kills 51 people at the Summerland amusement centre at Douglas, Isle of Man.
October 30 » The Bosphorus Bridge in Turkey is completed, connecting the continents of Europe and Asia over the Bosphorus for the second time.
November 17 » Watergate scandal: In Orlando, Florida, U.S. President Richard Nixon tells 400 Associated Press managing editors "I am not a crook."
December 3 » Pioneer program: Pioneer 10 sends back the first close-up images of Jupiter.
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/I121125.php : accessed October 24, 2026), "Petrus Boenstra (1918-1973)".
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