The temperature on January 12, 1911 was between -0.4 °C and 2.0 °C and averaged 0.9 °C. There was 10.2 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
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.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
When copying data from this family tree, please include a reference to the origin: F. Kueter, "Family tree Kueter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_kueter/I39299.php : accessed February 6, 2026), "Johannes DUIN (1886-????)".
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