The temperature on December 9, 1909 was between -2.6 °C and 3.4 °C and averaged 0.4 °C. There was 0.2 mm of rain. There was 2.9 hours of sunshine (37%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
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 9 » The U.S. Congress passes the Payne–Aldrich Tariff Act.
April 13 » The military of the Ottoman Empire reverses the Ottoman countercoup of 1909 to force the overthrow of Sultan Abdul Hamid II.
August 24 » Workers start pouring concrete for the Panama Canal.
September 7 » Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.
September 20 » The South Africa Act 1909 creates the Union of South Africa from the British Colonies from four smaller colonies.
Day of marriage November 20, 1947
The temperature on November 20, 1947 was between -2.8 °C and 12.7 °C and averaged 4.9 °C. There was 0.1 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 22 » KTLA, the first commercial television station west of the Mississippi River, begins operation in Hollywood.
March 25 » An explosion in a coal mine in Centralia, Illinois kills 111.
August 2 » A British South American Airways Avro Lancastrian airliner crashes into a mountain during a flight from Buenos Aires, Argentina to Santiago, Chile. The wreckage would not be found until 1998.
October 26 » Kashmir conflict: The Maharaja of Kashmir and Jammu signs the Instrument of Accession with India.
November 18 » The Ballantyne's Department Store fire in Christchurch, New Zealand, kills 41; it is the worst fire disaster in the history of New Zealand.
December 30 » Cold War: King Michael I of Romania is forced to abdicate by the Soviet Union-backed Communist government of Romania.
When copying data from this family tree, please include a reference to the origin: Bob Smith, "Family tree Smith", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-smith/I27898.php : accessed January 30, 2026), "Gustaaf Wilhelm Leonard van Velthoven (1909-)".
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