February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
July 1 » Start of first Tour de France bicycle race.
July 19 » Maurice Garin wins the first Tour de France.
July 23 » The Ford Motor Company sells its first car.
August 18 » German engineer Karl Jatho allegedly flies his self-made, motored gliding airplane four months before the first flight of the Wright brothers.
Day of death December 23, 1918
The temperature on December 23, 1918 was between 1.3 °C and 9.7 °C and averaged 6.9 °C. There was 1.8 mm of rain. There was 0.6 hours of sunshine (8%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west. 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 21 » World War I: The first phase of the German Spring Offensive, Operation Michael, begins.
March 27 » The National Council of Bessarabia proclaims union with the Kingdom of Romania.
July 4 » Bolsheviks kill Tsar Nicholas II of Russia and his family (Julian calendar date).
August 21 » World War I: The Second Battle of the Somme begins.
October 1 » Sayid Abdullah becomes the last Khan of Khiva.
October 26 » Erich Ludendorff, quartermaster-general of the Imperial German Army, is dismissed by Kaiser Wilhelm II for refusing to cooperate in peace negotiations.
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The Family tree Van Willigen publication was prepared by Rob van Willigen (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Rob van Willigen, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-willigen/I4376.php : accessed January 20, 2026), "Pieter Groeneveld (-1918)".
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