The temperature on December 16, 1912 was between 2.1 °C and 10.3 °C and averaged 6.3 °C. There was 10.3 mm of rain. There was 0.4 hours of sunshine (5%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
June 8 » Carl Laemmle incorporates Universal Pictures.
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
November 7 » The Deutsche Opernhaus (now Deutsche Oper Berlin) opens in the Berlin neighborhood of Charlottenburg, with a production of Beethoven's Fidelio.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Jan Thonis", database, Genealogy Online (https://www.genealogieonline.nl/jan-thonis/I175951.php : accessed February 2, 2026), "Heintje van Uffelen (1912-)".
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