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.
January 1 » The SPT Airboat Line becomes the world's first scheduled airline to use a winged aircraft.
June 23 » Mexican Revolution: Pancho Villa takes Zacatecas from Victoriano Huerta.
August 12 » World War I: The United Kingdom declares war on Austria-Hungary; the countries of the British Empire follow suit.
September 3 » French composer Albéric Magnard is killed defending his estate against invading German soldiers.
December 8 » World War I: A squadron of Britain's Royal Navy defeats the Imperial German East Asia Squadron in the Battle of the Falkland Islands in the South Atlantic.
December 16 » World War I: Admiral Franz von Hipper commands a raid on Scarborough, Hartlepool and Whitby.
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.
March 15 » Carpatho-Ukraine declares itself an independent republic, but is annexed by Hungary the next day.
April 10 » Alcoholics Anonymous, A.A.'s "Big Book", is first published.
May 3 » The All India Forward Bloc is formed by Netaji Subhas Chandra Bose.
June 1 » First flight of the German Focke-Wulf Fw 190 fighter aircraft.
July 6 » Anti-Jewish legislation in prewar Nazi Germany closes the last remaining Jewish enterprises.
August 25 » The United Kingdom and Poland form a military alliance in which the UK promises to defend Poland in case of invasion by a foreign power.
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.
February 14 » Ninety-two people are killed when Indian Airlines Flight 605 crashes in Bangalore, India.
May 17 » The General Assembly of the World Health Organization (WHO) eliminates homosexuality from the list of psychiatric diseases.
August 28 » An F5 tornado strikes the Illinois cities of Plainfield and Joliet, killing 29 people.
September 12 » The two German states and the Four Powers sign the Treaty on the Final Settlement with Respect to Germany in Moscow, paving the way for German reunification.
October 13 » Syrian forces attack free areas of Lebanon, removing General Michel Aoun from the presidential palace.
December 22 » Lech Wałęsa is elected President of Poland.
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 19, 2026), "Sipke Siersema (1914-1990)".
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