The temperature on November 16, 1911 was between 5.5 °C and 12.3 °C and averaged 10.0 °C. There was 7.2 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
January 3 » A magnitude 7.7 earthquake destroys the city of Almaty in Russian Turkestan.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
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.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
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/I119175.php : accessed October 18, 2026), "Janke Kooistra (1911-1998)".
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