The temperature on January 17, 1911 was between -3.7 °C and 2.4 °C and averaged 0.3 °C. There was 0.1 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of marriage May 22, 1936
The temperature on May 22, 1936 was between 2.6 °C and 15.4 °C and averaged 9.8 °C. There was 0.9 mm of rain during 1.3 hours. There was 9.8 hours of sunshine (61%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
May 26 » In the House of Commons of Northern Ireland, Tommy Henderson begins speaking on the Appropriation Bill. By the time he sits down in the early hours of the following morning, he had spoken for ten hours.
July 23 » In Catalonia, Spain, the Unified Socialist Party of Catalonia is founded through the merger of Socialist and Communist parties.
October 1 » Spanish Civil War: Francisco Franco is named head of the Nationalist government of Spain.
October 1 » Spanish Civil War: The Central Committee of Antifascist Militias of Catalonia dissolves itself, handing control of Catalan defence militias over to the Generalitat.
November 8 » Spanish Civil War: Francoist troops fail in their effort to capture Madrid, but begin the 3-year Siege of Madrid afterwards.
November 12 » In California, the San Francisco–Oakland Bay Bridge opens to traffic.
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/I133301.php : accessed October 6, 2026), "Hendrik de Jong (1911-)".
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