The temperature on March 6, 1917 was between -3.5 °C and 2.3 °C and averaged -1.0 °C. There was 4.7 hours of sunshine (42%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. 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.
April 16 » Vladimir Lenin returns to Petrograd, Russia, from exile in Switzerland.
May 13 » Three children report the first apparition of Our Lady of Fátima in Fátima, Portugal.
May 27 » Pope Benedict XV promulgates the 1917 Code of Canon Law, the first comprehensive codification of Catholic canon law in the legal history of the Catholic Church.
July 25 » Sir Robert Borden introduces the first income tax in Canada as a "temporary" measure (lowest bracket is 4% and highest is 25%).
August 6 » World War I: Battle of Mărășești between the Romanian and German armies begins.
December 20 » Cheka, the first Soviet secret police force, is founded.
Christening day September 9, 1917
The temperature on September 9, 1917 was between 11.6 °C and 18.8 °C and averaged 15.2 °C. There was 0.7 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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.
January 9 » World War I: The Battle of Rafa is fought near the Egyptian border with Palestine.
March 2 » The enactment of the Jones–Shafroth Act grants Puerto Ricans United States citizenship.
May 27 » Pope Benedict XV promulgates the 1917 Code of Canon Law, the first comprehensive codification of Catholic canon law in the legal history of the Catholic Church.
June 23 » In a game against the Washington Senators, Boston Red Sox pitcher Ernie Shore retires 26 batters in a row after replacing Babe Ruth, who had been ejected for punching the umpire.
December 6 » Halifax Explosion: A munitions explosion near Halifax, Nova Scotia kills more than 1,900 people in the largest artificial explosion up to that time.
December 12 » Father Edward J. Flanagan founds Boys Town as a farm village for wayward boys.
Day of death November 13, 1918
The temperature on November 13, 1918 was between 0.7 °C and 8.5 °C and averaged 4.8 °C. There was 0.2 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 2 Bft (weak wind) 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.
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.
July 6 » The Left SR uprising in Russia starts with the assassination of German ambassador Wilhelm von Mirbach by Cheka members.
August 2 » The first general strike in Canadian history takes place in Vancouver.
October 30 » World War I: The Ottoman Empire signs the Armistice of Mudros with the Allies.
November 13 » World War I: Allied troops occupy Constantinople, the capital of the Ottoman Empire.
December 14 » The 1918 United Kingdom general election occurs, the first where women were permitted to vote.
December 27 » The Great Poland Uprising against the Germans begins.
Day of burial November 16, 1918
The temperature on November 16, 1918 was between -4.1 °C and 4.1 °C and averaged -0.5 °C. There was 7.6 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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 23 » First World War: On the third day of the German Spring Offensive, the 10th Battalion of the Royal West Kent Regiment is annihilated with many of the men becoming prisoners of war
May 28 » The Azerbaijan Democratic Republic and the First Republic of Armenia declare their independence.
June 24 » First airmail service in Canada from Montreal to Toronto.
August 11 » World War I: The Battle of Amiens ends.
September 28 » World War I: The Fifth Battle of Ypres begins.
December 14 » The 1918 United Kingdom general election occurs, the first where women were permitted to vote.
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/I66717.php : accessed October 7, 2026), "Klaas Helder (1917-1918)".
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