The temperature on February 18, 1915 was between 4.4 °C and 8.3 °C and averaged 6.2 °C. There was 0.1 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. 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.
February 19 » World War I: The first naval attack on the Dardanelles begins when a strong Anglo-French task force bombards Ottoman artillery along the coast of Gallipoli.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
June 9 » William Jennings Bryan resigns as Woodrow Wilson's Secretary of State over a disagreement regarding the United States' handling of the sinking of the RMSLusitania.
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.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
Day of marriage February 16, 1938
The temperature on February 16, 1938 was between -2.8 °C and 2.9 °C and averaged -0.2 °C. There was 5.9 hours of sunshine (59%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
May 25 » Spanish Civil War: The bombing of Alicante kills 313 people.
June 24 » Pieces of a meteorite land near Chicora, Pennsylvania. The meteorite is estimated to have weighed 450metric tons when it hit the Earth's atmosphere and exploded.
July 31 » Archaeologists discover engraved gold and silver plates from King Darius the Great in Persepolis.
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
November 14 » The Lions Gate Bridge, connecting Vancouver to the North Shore region, opens to traffic.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
When copying data from this family tree, please include a reference to the origin: Arie Verloop, "Family tree Verloop", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-verloop/I9214.php : accessed October 10, 2026), "Helena Geertruida ZWARTS (1915-1974)".
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