The temperature on June 25, 1911 was between 10.5 °C and 19.1 °C and averaged 14.1 °C. There was 4.5 mm of rain. There was 9.5 hours of sunshine (57%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
December 27 » "Jana Gana Mana", the national anthem of India, is first sung in the Calcutta Session of the Indian National Congress.
Day of marriage May 28, 1937
The temperature on May 28, 1937 was between 7.9 °C and 22.8 °C and averaged 15.6 °C. There was 13.0 hours of sunshine (80%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. 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.
May 7 » Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces.
July 26 » Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.
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 24 » Spanish Civil War: the Basque Army surrenders to the Italian Corpo Truppe Volontarie following the Santoña Agreement.
November 9 » Second Sino-Japanese War: The Chinese Army withdraws from the Battle of Shanghai.
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/I134086.php : accessed October 12, 2026), "Roelofje Dalstra (1911-)".
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