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.
February 17 » Madama Butterfly receives its première at La Scala in Milan.
February 22 » The United Kingdom sells a meteorological station on the South Orkney Islands to Argentina; the islands are subsequently claimed by the United Kingdom in 1908.
August 23 » The automobile tire chain is patented.
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).
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 6 » Mother Teresa arrives by sea in Calcutta, India, to begin her work among India's poorest and sick people.
May 16 » In Hollywood, the first Academy Awards ceremony takes place.
July 27 » The Geneva Convention of 1929, dealing with treatment of prisoners-of-war, is signed by 53 nations.
October 29 » The New York Stock Exchange crashes in what will be called the Crash of '29 or "Black Tuesday", ending the Great Bull Market of the 1920s and beginning the Great Depression.
November 3 » The Gwangju Student Independence Movement occurred.
November 7 » In New York City, the Museum of Modern Art opens to the public.
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
January 22 » The Boeing 747, the world's first "jumbo jet", enters commercial service for launch customer Pan American Airways with its maiden voyage from John F. Kennedy International Airport to London Heathrow Airport.
February 11 » Japan launches Ohsumi, becoming the fourth nation to put an object into orbit using its own booster.
August 7 » California judge Harold Haley is taken hostage in his courtroom and killed during an effort to free George Jackson from police custody.
October 26 » Muhammad Ali boxes for the first time after Ali's three-year hiatus due to draft evasion.
November 1 » Club Cinq-Sept fire in Saint-Laurent-du-Pont, France kills 146 young people.
November 14 » Soviet Union enters ICAO, making Russian the fourth official language of 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/I114993.php : accessed October 18, 2026), "Ette Ploeg (1904-1970)".
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