The temperature on December 29, 1915 was between 2.4 °C and 7.0 °C and averaged 5.0 °C. There was 0.1 mm of rain. There was 0.3 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) 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.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 6 » World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.
August 27 » Attempted assassination of Bishop Patrick Heffron, bishop of the Diocese of Winona by Rev. Louis M. Lesches.
September 5 » The pacifist Zimmerwald Conference begins.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
When copying data from this family tree, please include a reference to the origin: Eric Brouwer, "Family tree Brouwer - Koster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-brouwer/I928.php : accessed March 5, 2026), "Cornelis Adriaan Kramer (1891-????)".
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