The temperature on January 30, 1911 was between -4.4 °C and 2.2 °C and averaged -1.6 °C. There was 7.0 hours of sunshine (78%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
Day of marriage May 30, 1936
The temperature on May 30, 1936 was between 5.8 °C and 14.8 °C and averaged 10.6 °C. There was 2.7 mm of rain during 2.3 hours. There was 2.0 hours of sunshine (12%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
February 26 » In the February 26 Incident, young Japanese military officers attempt to stage a coup against the government.
May 28 » Alan Turing submits On Computable Numbers for publication.
June 26 » Initial flight of the Focke-Wulf Fw 61, the first practical helicopter.
July 20 » The Montreux Convention is signed in Switzerland, authorizing Turkey to fortify the Dardanelles and Bosphorus but guaranteeing free passage to ships of all nations in peacetime.
August 10 » Spanish Civil War: The Regional Defence Council of Aragon is dissolved by the Spanish Republic.
December 7 » Australian cricketer Jack Fingleton becomes the first player to score centuries in four consecutive Test innings.
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/I122294.php : accessed October 24, 2026), "Jelte van der Kooi (1911-)".
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