January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 6 » Second Boer War: Having already besieged the fortress at Ladysmith, Boer forces attack it, but are driven back by British defenders.
February 27 » The British Labour Party is founded.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage September 20, 1922
The temperature on September 20, 1922 was between 9.5 °C and 18.7 °C and averaged 14.6 °C. There was 1.6 mm of rain. There was 7.4 hours of sunshine (60%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 8 » United States President Warren G. Harding introduces the first radio set in the White House.
April 20 » The Soviet government creates South Ossetian Autonomous Oblast within Georgian SSR.
June 29 » France grants 1km at Vimy Ridge "freely, and for all time, to the Government of Canada, the free use of the land exempt from all taxes".
July 15 » Japanese Communist Party is established in Japan.
October 18 » The British Broadcasting Company (later Corporation) is founded by a consortium, to establish a nationwide network of radio transmitters to provide a national broadcasting service.
December 9 » Gabriel Narutowicz is elected the first president of Poland.
Day of death July 25, 1977
The temperature on July 25, 1977 was between 12.4 °C and 17.6 °C and averaged 14.4 °C. There was 15.4 mm of rain during 4.5 hours. There was 3.0 hours of sunshine (19%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
March 16 » Assassination of Kamal Jumblatt, the main leader of the anti-government forces in the Lebanese Civil War.
May 25 » Star Wars (retroactively titled Star Wars: Episode IV – A New Hope) is released in theaters.
June 13 » Convicted Martin Luther King Jr. assassin James Earl Ray is recaptured after escaping from prison three days before.
August 15 » The Big Ear, a radio telescope operated by Ohio State University as part of the SETI project, receives a radio signal from deep space; the event is named the "Wow! signal" from the notation made by a volunteer on the project.
December 18 » United Airlines Flight 2860 crashes near Kaysville, Utah, killing all three crew members on board.
December 25 » Israeli Prime Minister Menachem Begin meets in Egypt with its president Anwar Sadat.
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/I93484.php : accessed February 23, 2026), "Hendrik Zaat (1900-1977)".
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