The temperature on March 22, 1911 was between 2.5 °C and 16.6 °C and averaged 10.0 °C. There was 7.9 hours of sunshine (64%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of marriage September 9, 1937
The temperature on September 9, 1937 was between 6.5 °C and 16.2 °C and averaged 11.9 °C. There was 2.6 mm of rain during 2.3 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 2 » The Steel Workers Organizing Committee signs a collective bargaining agreement with U.S. Steel, leading to unionization of the United States steel industry.
April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
April 9 » The Kamikaze arrives at Croydon Airport in London. It is the first Japanese-built aircraft to fly to Europe.
July 22 » New Deal: The United States Senate votes down President Franklin D. Roosevelt's proposal to add more justices to the Supreme Court of the United States.
August 2 » The Marihuana Tax Act of 1937 is passed in America, the effect of which is to render marijuana and all its by-products illegal.
August 14 » The beginning of air-to-air combat of the Second Sino-Japanese War and World War II in general, when six Japanese bombers are shot down by Chinese fighters while raiding Chinese air bases.
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/I183281.php : accessed December 27, 2025), "Derk Willem Weening (1911-)".
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