The temperature on June 9, 1911 was between 8.5 °C and 17.0 °C and averaged 13.5 °C. There was 3.9 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
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: Wendy Ruwhof, "Descendants Claes Harmens (Post)", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-claes-harmens/I1069.php : accessed March 4, 2026), "Hendrik Sattler (1911-)".
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