The temperature on May 1, 1915 was between 4.5 °C and 19.4 °C and averaged 13.2 °C. There was 7.3 hours of sunshine (49%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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 24 » World War I: British Grand Fleet battle cruisers under Vice-Admiral Sir David Beatty engage Rear-Admiral Franz von Hipper's battle cruisers in the Battle of Dogger Bank.
February 8 » D. W. Griffith's controversial film The Birth of a Nation premieres in Los Angeles.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
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: Ferry de Vries, "Family tree De Vries-Mittendorff", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-vries/I2829.php : accessed March 11, 2026), "Roelofje de Weerd (1889-????)".
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