The temperature on May 23, 1909 was between 8.7 °C and 25.7 °C and averaged 17.9 °C. There was 12.5 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
March 10 » By signing the Anglo-Siamese Treaty of 1909, Thailand relinquishes its sovereignty over the Malay states of Kedah, Kelantan, Perlis and Terengganu, which become British protectorates.
April 13 » The military of the Ottoman Empire reverses the Ottoman countercoup of 1909 to force the overthrow of Sultan Abdul Hamid II.
April 18 » Joan of Arc is beatified in Rome.
June 2 » Alfred Deakin becomes Prime Minister of Australia for the third time.
August 24 » Workers start pouring concrete for the Panama Canal.
Day of marriage June 16, 1927
The temperature on June 16, 1927 was between 6.0 °C and 23.9 °C and averaged 17.1 °C. There was 12.9 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
February 23 » U.S. President Calvin Coolidge signs a bill by Congress establishing the Federal Radio Commission (later replaced by the Federal Communications Commission) which was to regulate the use of radio frequencies in the United States.
May 1 » The Union Labor Life Insurance Company is founded by the American Federation of Labor.
June 29 » The Bird of Paradise, a U.S. Army Air Corps Fokker tri-motor, completes the first transpacific flight, from the mainland United States to Hawaii.
October 6 » Opening of The Jazz Singer, the first prominent "talkie" movie.
December 19 » Three Indian revolutionaries, Ram Prasad Bismil, Roshan Singh and Ashfaqulla Khan, are executed by the British Raj for participation in the Kakori conspiracy.
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/I68853.php : accessed October 6, 2026), "Grietje Alma (1909-)".
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