The temperature on July 15, 1918 was between 14.9 °C and 21.4 °C and averaged 17.6 °C. There was 2.2 hours of sunshine (13%). 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.
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.
March 25 » The Belarusian People's Republic is established.
April 23 » World War I: The British Royal Navy makes a raid in an attempt to neutralise the Belgian port of Bruges-Zeebrugge.
July 6 » The Left SR uprising in Russia starts with the assassination of German ambassador Wilhelm von Mirbach by Cheka members.
July 26 » Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.
October 3 » King Boris III of Bulgaria accedes to the throne.
December 14 » Portuguese President Sidónio Pais is assassinated.
Day of marriage December 21, 1938
The temperature on December 21, 1938 was between -11.6 °C and -8.6 °C and averaged -9.7 °C. There was 7.7 mm of rain during 12.5 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I474071.php : accessed March 5, 2026), "Arend Booij (1918-< 2017)".
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