The temperature on December 26, 1912 was between 3.2 °C and 9.0 °C and averaged 6.4 °C. There was 10.5 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
February 14 » Arizona is admitted as the 48th and the last contiguous U.S. state.
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
June 8 » Carl Laemmle incorporates Universal Pictures.
November 19 » First Balkan War: The Serbian Army captures Bitola, ending the five-century-long Ottoman rule of Macedonia.
Day of marriage May 25, 1940
The temperature on May 25, 1940 was between 8.7 °C and 25.2 °C and averaged 17.8 °C. There was 10.1 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
March 16 » First person killed (James Isbister) in a German bombing raid on the UK in World War II during a raid on Scapa Flow in the Orkney Islands.
May 26 » World War II: The Siege of Calais ends with the surrender of the British and French garrison.
May 28 » World War II: Norwegian, French, Polish and British forces recapture Narvik in Norway. This is the first allied infantry victory of the War.
June 18 » The "Finest Hour" speech is delivered by Winston Churchill.
August 19 » First flight of the B-25 Mitchell medium bomber.
August 25 » World War II: The first Bombing of Berlin by the British Royal Air Force.
Day of death April 22, 2003
The temperature on April 22, 2003 was between 5.0 °C and 17.5 °C and averaged 11.7 °C. There was 0.1 mm of rain during 0.2 hours. There was 10.0 hours of sunshine (70%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from Monday, July 22, 2002 to Tuesday, May 27, 2003 the cabinet Balkenende I, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
In The Netherlands , there was from Tuesday, May 27, 2003 to Friday, July 7, 2006 the cabinet Balkenende II, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
January 16 » The Space Shuttle Columbia takes off for mission STS-107 which would be its final one. Columbia disintegrated 16 days later on re-entry.
January 24 » The United States Department of Homeland Security officially begins operation.
August 29 » Ayatollah Sayed Mohammed Baqir al-Hakim, the Shia Muslim leader in Iraq, is assassinated in a terrorist bombing, along with nearly 100 worshippers as they leave a mosque in Najaf.
September 21 » The Galileo spacecraft is terminated by sending it into Jupiter's atmosphere.
November 23 » Rose Revolution: Georgian president Eduard Shevardnadze resigns following weeks of mass protests over flawed elections.
December 13 » Iraq War: Operation Red Dawn: Former Iraqi President Saddam Hussein is captured near his home town of Tikrit.
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/I119869.php : accessed October 23, 2026), "Sytze de Groot (1912-2003)".
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