The temperature on September 12, 1920 was between 6.6 °C and 20.3 °C and averaged 13.2 °C. There was 9.5 hours of sunshine (73%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
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.
June 15 » Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.
August 20 » The National Football League is organized as the American Professional Football Conference in Canton, Ohio
October 30 » The Communist Party of Australia is founded in Sydney.
November 7 » Patriarch Tikhon of Moscow issues a decree that leads to the formation of the Russian Orthodox Church Outside Russia.
November 15 » First assembly of the League of Nations is held in Geneva, Switzerland.
December 11 » Irish War of Independence: In retaliation for a recent IRA ambush, British forces burn and loot numerous buildings in Cork city. Many civilians report being beaten, shot at, robbed and verbally abused by British forces.
Day of death December 6, 1971
The temperature on December 6, 1971 was between 2.0 °C and 8.6 °C and averaged 5.3 °C. There was 0.1 mm of rain. There was 1.7 hours of sunshine (21%). The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east. Source: KNMI
January 22 » The Singapore Declaration, one of the two most important documents to the uncodified constitution of the Commonwealth of Nations, is issued.
February 9 » The 6.5–6.7 Mw Sylmar earthquake hits the Greater Los Angeles Area with a maximum Mercalli intensity of XI (Extreme), killing 64 and injuring 2,000.
February 24 » The All India Forward Bloc holds an emergency central committee meeting after its chairman, Hemantha Kumar Bose, is killed three days earlier. P.K. Mookiah Thevar is appointed as the new chairman.
April 1 » Bangladesh Liberation War: The Pakistan Army massacre over 1,000 people in Keraniganj Upazila, Bangladesh.
December 7 » The Battle of Sylhet is fought between the Pakistani military and the Mukti Bahini.
December 16 » The United Kingdom recognizes Bahrain's independence, which is commemorated annually as Bahrain's National Day.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I331879.php : accessed March 6, 2026), "Jacoba Cornelia Marks (1920-1971)".
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