The temperature on May 23, 1915 was between 12.7 °C and 23.9 °C and averaged 17.9 °C. There was 13.8 hours of sunshine (86%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. 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 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
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.
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.
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.
October 14 » World War I: Bulgaria joins the Central Powers.
When copying data from this family tree, please include a reference to the origin: Paul Cuenen, "Family tree Cuenen-Duelen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-cuenen-duelen/I17354.php : accessed September 25, 2024), "Petronella KEUNEN (????-1915)".
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