The temperature on December 21, 1904 was between -2.8 °C and 3.2 °C and averaged -0.4 °C. There was 5.7 hours of sunshine (74%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
February 8 » Aceh War: Dutch Colonial Army's Marechaussee regiment led by General G.C.E. van Daalen launch military campaign to capture Gayo Highland, Alas Highland, and Batak Highland in Dutch East Indies' Northern Sumatra region, which ends with genocide to Acehnese and Bataks people.
May 10 » The Horch & Cir. Motorwagenwerke AG is founded. It would eventually become the Audi company.
June 16 » Irish author James Joyce begins a relationship with Nora Barnacle and subsequently uses the date to set the actions for his novel Ulysses; this date is now traditionally called "Bloomsday".
October 4 » The IFK Göteborg football club is founded in Sweden.
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 marriage January 17, 1929
The temperature on January 17, 1929 was between -7.1 °C and 1.0 °C and averaged -2.1 °C. There was 1.4 mm of rain. There was 2.2 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
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 20 » The first full-length talking motion picture filmed outdoors, In Old Arizona, is released.
June 1 » The 1st Conference of the Communist Parties of Latin America is held in Buenos Aires.
July 24 » The Kellogg–Briand Pact, renouncing war as an instrument of foreign policy, goes into effect (it is first signed in Paris on August 27, 1928, by most leading world powers).
August 8 » The German airship Graf Zeppelin begins a round-the-world flight.
November 29 » U.S. Admiral Richard E. Byrd leads the first expedition to fly over the South Pole.
December 27 » Soviet General Secretary Joseph Stalin orders the "liquidation of the kulaks as a class".
Day of death April 21, 1970
The temperature on April 21, 1970 was between 4.2 °C and 10.4 °C and averaged 8.2 °C. There was 5.1 mm of rain during 10.2 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
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/I114993.php : accessed October 15, 2026), "Ette Ploeg (1904-1970)".
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