The temperature on May 21, 1911 was between 6.5 °C and 17.7 °C and averaged 11.8 °C. There was 11.1 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
October 5 » The Kowloon–Canton Railway commences service.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
Day of marriage August 30, 1939
The temperature on August 30, 1939 was between 12.2 °C and 23.8 °C and averaged 17.4 °C. There was 0.1 mm of rain. There was 8.8 hours of sunshine (64%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
February 10 » Spanish Civil War: The Nationalists conclude their conquest of Catalonia and seal the border with France.
April 9 » African-American singer Marian Anderson gives a concert at the Lincoln Memorial after being denied the use of Constitution Hall by the Daughters of the American Revolution.
May 23 » The U.S. Navy submarine USS Squalus sinks off the coast of New Hampshire during a test dive, causing the death of 24 sailors and two civilian technicians. The remaining 32 sailors and one civilian naval architect are rescued the following day.
June 17 » Last public guillotining in France: Eugen Weidmann, a convicted murderer, is executed in Versailles outside the Saint-Pierre prison.
September 18 » World War II: The Polish government of Ignacy Mościcki flees to Romania.
December 13 » World War II: Battle of the River Plate: Captain Hans Langsdorff of the German Deutschland-class cruiser (pocket battleship) Admiral Graf Spee engages with Royal Navy cruisers HMSExeter, HMSAjax and HMSAchilles.
When copying data from this family tree, please include a reference to the origin: Johanna Lodewijks, "Family tree Dusseljee", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dusseljee/I2630.php : accessed January 31, 2026), "Ethel Violet van Overzee (1911-)".
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