The temperature on May 1, 1911 was between 2.1 °C and 12.6 °C and averaged 7.7 °C. There was 10.6 hours of sunshine (71%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
September 29 » Italy declares war on the Ottoman Empire.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
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.
When copying data from this family tree, please include a reference to the origin: W.E. Klop-Bout, "Family tree Bout", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-bout/I2831.php : accessed March 1, 2026), "Willem van Suijdam (± 1883-????)".
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