The temperature on September 7, 1915 was between 6.0 °C and 19.6 °C and averaged 13.4 °C. There was 4.8 hours of sunshine (36%). 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.
January 13 » The 6.7 Mw Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
July 5 » The Liberty Bell leaves Philadelphia by special train on its way to the Panama–Pacific International Exposition. This is the last trip outside Philadelphia that the custodians of the bell intend to permit.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
October 14 » World War I: Bulgaria joins the Central Powers.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death January 6, 1990
The temperature on January 6, 1990 was between 3.0 °C and 6.1 °C and averaged 4.1 °C. There was 1.5 mm of rain during 1.3 hours. There was 0.7 hours of sunshine (9%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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 18 » In the largest art theft in US history, 12 paintings, collectively worth around $500million, are stolen from the Isabella Stewart Gardner Museum in Boston.
April 24 » Gruinard Island, Scotland, is officially declared free of the anthrax disease after 48 years of quarantine.
June 19 » The Communist Party of the Russian Soviet Federative Socialist Republic is founded in Moscow.
July 16 » The Luzon earthquake strikes the Philippines with an intensity of 7.7, affecting Benguet, Pangasinan, Nueva Ecija, La Union, Aurora, Bataan, Zambales and Tarlac.
August 7 » First American soldiers arrive in Saudi Arabia as part of the Gulf War.
November 15 » The Communist People's Republic of Bulgaria is disestablished and a new republican government is instituted.
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/I143831.php : accessed January 2, 2026), "Tietje Willemina Poort (1915-1990)".
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