The temperature on August 6, 1916 was between 6.3 °C and 20.3 °C and averaged 14.3 °C. There was 4.1 hours of sunshine (27%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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.
February 25 » In the Battle of Verdun, a German unit captures Fort Douaumont, keystone of the French defences, without a fight.
April 9 » World War I: The Battle of Verdun: German forces launch their third offensive of the battle.
June 29 » British diplomat turned Irish nationalist Roger Casement is sentenced to death for his part in the Easter Rising.
July 15 » In Seattle, Washington, William Boeing and George Conrad Westervelt incorporate Pacific Aero Products (later renamed Boeing).
November 5 » The Kingdom of Poland is proclaimed by the Act of 5th November of the emperors of Germany and Austria-Hungary.
December 23 » World War I: Battle of Magdhaba: Allied forces defeat Turkish forces in the Sinai Peninsula.
Day of death April 21, 1918
The temperature on April 21, 1918 was between -1.8 °C and 11.5 °C and averaged 5.8 °C. There was 8.6 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-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.
February 5 » Stephen W. Thompson shoots down a German airplane; this is the first aerial victory by the U.S. military.
April 20 » Manfred von Richthofen, a.k.a. The Red Baron, shoots down his 79th and 80th victims, his final victories before his death the following day.
June 10 » The Austro-Hungarian battleship SMSSzent István sinks off the Croatian coast after being torpedoed by an Italian MAS motorboat; the event is recorded by camera from a nearby vessel.
October 10 » RMS Leinster is torpedoed and sunk by UB-123, killing 564, the worst-ever on the Irish Sea.
November 4 » World War I: The Armistice of Villa Giusti between Italy and Austria-Hungary is implemented.
November 13 » World War I: Allied troops occupy Constantinople, the capital of the Ottoman Empire.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I86569.php : accessed October 22, 2026), "Harm Berend Grimmius (1916-1918)".
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