February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
June 16 » The Ford Motor Company is incorporated.
October 6 » The High Court of Australia sits for the first time.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
Day of marriage September 9, 1926
The temperature on September 9, 1926 was between 10.8 °C and 19.9 °C and averaged 15.6 °C. There was 0.4 mm of rain. There was 0.6 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 8 » Crown Prince Nguyễn Phúc Vĩnh Thuỵ ascends the throne to become the last monarch of Vietnam.
January 26 » The first demonstration of the television by John Logie Baird.
May 18 » Evangelist Aimee Semple McPherson disappears in Venice, California.
June 28 » Mercedes-Benz is formed by Gottlieb Daimler and Karl Benz merging their two companies.
October 31 » Last issue of the independent Italian newspaper Il Mondo, thereafter suppressed by the Mussolini regime
December 17 » Antanas Smetona assumes power in Lithuania as the 1926 coup d'état is successful.
Day of death September 17, 1978
The temperature on September 17, 1978 was between 7.2 °C and 17.0 °C and averaged 13.6 °C. There was -0.1 mm of rain. There was 5.0 hours of sunshine (40%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 17 » The Troubles: The Provisional IRA detonates an incendiary bomb at the La Mon restaurant, near Belfast, killing 12 and seriously injuring 30 others, all Protestants.
March 28 » The US Supreme Court hands down 5–3 decision in Stump v. Sparkman, a controversial case involving involuntary sterilization and judicial immunity.
April 1 » The Philippine College of Commerce, through a presidential decree, becomes the Polytechnic University of the Philippines.
May 8 » The first ascent of Mount Everest without supplemental oxygen, by Reinhold Messner and Peter Habeler.
November 18 » In Jonestown, Guyana, Jim Jones led his Peoples Temple to a mass murder–suicide that claimed 918 lives in all, 909 of them in Jonestown itself, including over 270 children. Congressman Leo Ryan is murdered by members of the Peoples Temple hours earlier.
December 6 » Spain ratifies the Spanish Constitution of 1978 in a referendum.
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/I94874.php : accessed February 11, 2026), "Trijntje de Boer (1903-1978)".
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