The temperature on May 21, 1914 was between 8.8 °C and 22.8 °C and averaged 16.1 °C. There was 9.9 hours of sunshine (62%). 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.
March 8 » First flights (for the Royal Thai Air Force) at Don Mueang International Airport in Bangkok.
August 5 » World War I: The guns of Point Nepean fort at Port Phillip Heads in Victoria (Australia) fire across the bows of the Norddeutscher Lloyd steamer SSPfalz which is attempting to leave the Port of Melbourne in ignorance of the declaration of war and she is detained; this is said to be the first Allied shot of the War.
August 26 » World War I: During the retreat from Mons, the British II Corps commanded by General Sir Horace Smith-Dorrien fought a vigorous and successful defensive action at Le Cateau.
August 27 » World War I: Battle of Étreux: A British rearguard action by the Royal Munster Fusiliers during the Great Retreat.
October 18 » The Schoenstatt Movement is founded in Germany.
December 24 » World War I: The "Christmas truce" begins.
Day of marriage May 11, 1939
The temperature on May 11, 1939 was between 8.5 °C and 17.3 °C and averaged 11.9 °C. There was 0.2 mm of rain during 0.2 hours. There was 4.8 hours of sunshine (31%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
February 27 » United States labor law: The U.S. Supreme Court rules in NLRB v. Fansteel Metallurgical Corp. that the National Labor Relations Board has no authority to force an employer to rehire workers who engage in sit-down strikes.
March 30 » The Heinkel He 100 fighter sets a world airspeed record of 463mph (745km/h).
June 12 » Shooting begins on Paramount Pictures' Dr. Cyclops, the first horror film photographed in three-strip Technicolor.
November 8 » Venlo Incident: Two British agents of SIS are captured by the Germans.
November 17 » Nine Czech students are executed as a response to anti-Nazi demonstrations prompted by the death of Jan Opletal. All Czech universities are shut down and more than 1,200 students sent to concentration camps. Since this event, International Students' Day is celebrated in many countries, especially in the Czech Republic.
November 26 » Shelling of Mainila: The Soviet Army orchestrates an incident which is used to justify the start of the Winter War with Finland four days later.
Day of death October 17, 1990
The temperature on October 17, 1990 was between 9.8 °C and 16.6 °C and averaged 13.4 °C. There was 6.3 mm of rain during 3.5 hours. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 10 » In Haiti, Prosper Avril is ousted 18 months after seizing power in a coup.
April 16 » "Doctor Death", Jack Kevorkian, participates in his first assisted suicide.
June 19 » The Communist Party of the Russian Soviet Federative Socialist Republic is founded in Moscow.
July 6 » The Electronic Frontier Foundation is founded.
July 30 » Ian Gow, Conservative Member of Parliament, is assassinated at his home by IRA terrorists in a car bombing after he assured the group that the British government would never surrender to them.
August 12 » Sue, the largest and most complete Tyrannosaurus rex skeleton found to date, is discovered by Sue Hendrickson in South Dakota.
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/I122491.php : accessed October 23, 2026), "Sipke Siersema (1914-1990)".
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