The temperature on November 30, 1911 was between 5.4 °C and 7.9 °C and averaged 6.5 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
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: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I1131.php : accessed December 26, 2025), "Willem Kok (1887-????)".
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