The temperature on February 1, 1911 was between -8.0 °C and 1.7 °C and averaged -2.1 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
January 15 » Palestinian Arabic-language Falastin newspaper founded.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 29 » Italy declares war on the Ottoman Empire.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
Day of marriage May 12, 1938
The temperature on May 12, 1938 was between 0.4 °C and 20.8 °C and averaged 12.6 °C. There was 12.9 hours of sunshine (83%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
February 11 » BBC Television produces the world's first ever science fiction television programme, an adaptation of a section of the Karel Čapek play R.U.R., that coined the term "robot".
February 18 » Second Sino-Japanese War: During the Nanking Massacre, the Nanking Safety Zone International Committee is renamed "Nanking International Rescue Committee", and the safety zone in place for refugees falls apart.
March 3 » Oil is discovered in Saudi Arabia.
April 25 » U.S. Supreme Court delivers its opinion in Erie Railroad Co. v. Tompkins and overturns a century of federal common law.
April 30 » The animated cartoon short Porky's Hare Hunt debuts in movie theaters, introducing Happy Rabbit, an early version of Bugs Bunny.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
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/I137760.php : accessed February 18, 2026), "Jan Wybenga (1911-)".
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