The temperature on July 14, 1911 was between 14.2 °C and 22.7 °C and averaged 18.0 °C. There was 0.1 mm of rain. There was 13.5 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage March 25, 1935
The temperature on March 25, 1935 was between 0.6 °C and 10.4 °C and averaged 6.5 °C. There was 0.6 mm of rain during 0.8 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 11 » Amelia Earhart becomes the first person to fly solo from Hawaii to California.
February 20 » Caroline Mikkelsen becomes the first woman to set foot in Antarctica.
February 26 » Robert Watson-Watt carries out a demonstration near Daventry which leads directly to the development of radar in the United Kingdom.
April 23 » The Polish Constitution of 1935 is adopted.
May 24 » The first night game in Major League Baseball history is played in Cincinnati, Ohio, with the Cincinnati Reds beating the Philadelphia Phillies 2–1 at Crosley Field.
September 8 » US Senator from Louisiana Huey Long is fatally shot in the Louisiana State Capitol building.
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/I134033.php : accessed October 20, 2026), "Johannes de Graaf (1911-)".
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