The temperature on September 23, 1914 was between 5.1 °C and 18.7 °C and averaged 11.6 °C. There was 10.5 hours of sunshine (86%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-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.
April 24 » The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
May 17 » The Protocol of Corfu is signed, recognising full autonomy to Northern Epirus under nominal Albanian sovereignty.
August 12 » World War I: The United Kingdom declares war on Austria-Hungary; the countries of the British Empire follow suit.
September 17 » World War I: The Race to the Sea begins.
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 24 » World War I: The "Christmas truce" begins.
Day of death April 17, 1991
The temperature on April 17, 1991 was between 0.2 °C and 9.3 °C and averaged 5.2 °C. There was 6.9 mm of rain during 4.2 hours. There was 4.7 hours of sunshine (34%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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.
May 5 » A riot breaks out in the Mt. Pleasant section of Washington, D.C. after police shoot a Salvadoran man.
May 18 » Northern Somalia declares independence from the rest of Somalia as the Republic of Somaliland but is not recognized by the international community.
May 19 » Croatians vote for independence in a referendum.
June 19 » The last Soviet army units in Hungary are withdrawn.
August 30 » Dissolution of the Soviet Union: Azerbaijan declares independence from Soviet Union.
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/I146394.php : accessed October 16, 2026), "Anne Poortinga (1914-1991)".
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