The temperature on February 6, 1915 was between -0.7 °C and 3.4 °C and averaged 1.2 °C. There was 1.4 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 17 » Russia defeats Ottoman Turkey in the Battle of Sarikamish during the Caucasus Campaign of World War I.
March 20 » Albert Einstein publishes his general theory of relativity.
April 24 » The arrest of 250 Armenian intellectuals and community leaders in Istanbul marks the beginning of the Armenian Genocide.
May 7 » World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many former pro-Germans in the United States against the German Empire.
July 7 » The First Battle of the Isonzo comes to an end.
September 30 » World War I: Radoje Ljutovac becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.
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/I189977.php : accessed February 12, 2026), "Jacob de Jong (1915-)".
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