January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
May 17 » The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
June 17 » Boxer Rebellion: Western Allied and Japanese forces capture the Taku Forts in Tianjin, China.
July 9 » The Federation of Australia is given royal assent.
July 27 » Kaiser Wilhelm II makes a speech comparing Germans to Huns; for years afterwards, "Hun" would be a disparaging name for Germans.
Day of marriage April 13, 1918
The temperature on April 13, 1918 was between 5.4 °C and 7.7 °C and averaged 6.6 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-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.
July 12 » The Imperial Japanese Navy battleship Kawachi blows up at Shunan, western Honshu, Japan, killing at least 621.
July 17 » Tsar Nicholas II of Russia and his immediate family and retainers are executed by Bolshevik Chekists at the Ipatiev House in Yekaterinburg, Russia.
August 16 » The Battle of Lake Baikal was fought between the Czechoslovak Legion and the Red Army.
October 28 » First World War: A new Polish government in western Galicia is established, triggering the Polish–Ukrainian War.
November 13 » World War I: Allied troops occupy Constantinople, the capital of the Ottoman Empire.
December 14 » Portuguese President Sidónio Pais is assassinated.
Day of death November 20, 1918
The temperature on November 20, 1918 was between -1.6 °C and 6.9 °C and averaged 1.8 °C. There was 0.8 hours of sunshine (9%). The average windspeed was 2 Bft (weak 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.
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/I2217.php : accessed October 3, 2026), "Albertje Jongsma (1900-1918)".
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