The temperature on January 18, 1915 was between -1.5 °C and 2.9 °C and averaged 0.4 °C. There was 1.0 mm of rain. There was 2.9 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
January 31 » World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
May 6 » Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run.
June 29 » The North Saskatchewan River flood of 1915 is the worst flood in Edmonton history.
September 5 » The pacifist Zimmerwald Conference begins.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death August 18, 1919
The temperature on August 18, 1919 was between 11.0 °C and 23.5 °C and averaged 17.6 °C. There was 8.5 hours of sunshine (58%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 31 » The Battle of George Square takes place in Glasgow, Scotland, during a campaign for shorter working hours.
February 5 » Charlie Chaplin, Mary Pickford, Douglas Fairbanks, and D. W. Griffith launch United Artists.
April 13 » Jallianwala Bagh massacre: British Indian Army troops lead by Brigadier-General Reginald Dyer killed approx 379-1000 unarmed demonstrators including men and women in Amritsar, India; and approximately 1,500 injured.
June 15 » John Alcock and Arthur Brown complete the first nonstop transatlantic flight when they reach Clifden, County Galway, Ireland.
July 23 » Prince Regent Aleksander Karađorđević signs the decree establishing the University of Ljubljana
August 11 » Germany's Weimar Constitution is signed into law.
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/I131013.php : accessed February 13, 2026), "Herman Oldenburger (1915-1919)".
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