The temperature on December 3, 1918 was between 4.9 °C and 10.6 °C and averaged 7.6 °C. There was 5.3 mm of rain. The average windspeed was 4 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 31 » Daylight saving time goes into effect in the United States for the first time.
July 15 » World War I: The Second Battle of the Marne begins near the River Marne with a German attack.
August 30 » Fanni Kaplan shoots and seriously injures Bolshevik leader Vladimir Lenin, which along with the assassination of Bolshevik senior official Moisei Uritsky days earlier, prompts the decree for Red Terror.
September 26 » World War I: The Meuse-Argonne Offensive began which would last until the total surrender of German forces.
October 30 » World War I: The Ottoman Empire signs the Armistice of Mudros with the Allies.
December 4 » U.S. President Woodrow Wilson sails for the World War I peace talks in Versailles, becoming the first US president to travel to Europe while in office.
Day of death April 19, 1938
The temperature on April 19, 1938 was between -0.4 °C and 8.5 °C and averaged 4.3 °C. There was 6.1 mm of rain during 3.2 hours. There was 2.2 hours of sunshine (16%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
March 18 » Mexico creates Pemex by expropriating all foreign-owned oil reserves and facilities.
April 25 » U.S. Supreme Court delivers its opinion in Erie Railroad Co. v. Tompkins and overturns a century of federal common law.
May 25 » Spanish Civil War: The bombing of Alicante kills 313 people.
August 20 » Lou Gehrig hits his 23rd career grand slam, a record that stood for 75 years until it was broken by Alex Rodriguez.
October 30 » Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.
December 16 » Adolf Hitler institutes the Cross of Honour of the German Mother.
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/I141208.php : accessed October 21, 2026), "Pier Koopmans (1918-1938)".
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