The temperature on May 11, 1918 was between 3.4 °C and 14.5 °C and averaged 9.9 °C. There was 0.1 mm of rain. There was 0.7 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) 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.
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 24 » The Gregorian calendar is introduced in Russia by decree of the Council of People's Commissars effective February 14 (New Style).
March 21 » World War I: The first phase of the German Spring Offensive, Operation Michael, begins.
May 16 » The Sedition Act of 1918 is passed by the U.S. Congress, making criticism of the government during wartime an imprisonable offense. It will be repealed less than two years later.
August 13 » Women enlist in the United States Marine Corps for the first time. Opha May Johnson is the first woman to enlist.
August 31 » World War I: Start of the Battle of Mont Saint-Quentin, a successful assault by the Australian Corps during the Hundred Days Offensive.
October 31 » World War I: The Aster Revolution terminates the Austro-Hungarian Compromise of 1867, and Hungary achieves full sovereignty.
When copying data from this family tree, please include a reference to the origin: Cor Blommers, "Family tree Mijjer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-mijjer/I1322.php : accessed February 18, 2026), "Johannes Everardus Maria Josephus Poelmann (1918-)".
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