The temperature on June 18, 1912 was between 10.0 °C and 17.3 °C and averaged 14.3 °C. There was 8.6 mm of rain. There was 0.9 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
Day of marriage February 2, 1935
The temperature on February 2, 1935 was between 1.3 °C and 11.2 °C and averaged 7.8 °C. There was 4.2 mm of rain during 1.4 hours. There was 1.3 hours of sunshine (14%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west. Source: KNMI
February 20 » Caroline Mikkelsen becomes the first woman to set foot in Antarctica.
May 31 » A 7.7 Mw earthquake destroys Quetta in modern-day Pakistan killing 40,000.
June 12 » A ceasefire is negotiated between Bolivia and Paraguay, ending the Chaco War.
September 15 » The Nuremberg Laws deprive German Jews of citizenship.
November 9 » The Congress of Industrial Organizations is founded in Atlantic City, New Jersey, by eight trade unions belonging to the American Federation of Labor.
December 30 » The Italian Air Force bombs a Swedish Red Cross hospital during the Second Italo-Abyssinian War.
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/I167624.php : accessed October 25, 2026), "Jelle de Haan (1912-)".
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