The temperature on June 24, 1909 was between 9.2 °C and 17.6 °C and averaged 13.3 °C. There was 9.8 mm of rain. There was 3.5 hours of sunshine (21%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
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.
March 23 » Theodore Roosevelt leaves New York for a post-presidency safari in Africa. The trip is sponsored by the Smithsonian Institution and National Geographic Society.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
April 27 » Sultan of Ottoman Empire Abdul Hamid II is overthrown, and is succeeded by his brother, Mehmed V.
July 25 » Louis Blériot makes the first flight across the English Channel in a heavier-than-air machine from Calais to Dover, England, United Kingdom in 37 minutes.
Day of marriage April 11, 1934
The temperature on April 11, 1934 was between 2.8 °C and 18.3 °C and averaged 11.1 °C. There was 3.8 hours of sunshine (28%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Rob van Koert, "Family tree Van Koert", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-koert/I40323.php : accessed January 29, 2026), "Mathilda Petronella Rogier (1909-)".
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