The temperature on August 17, 1911 was between 10.8 °C and 21.3 °C and averaged 15.6 °C. There was 4.6 hours of sunshine (31%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
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.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
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: Harrie Kersten, "Family tree familie Kersten", database, Genealogy Online (https://www.genealogieonline.nl/familie-kersten-stamboom/I18637.php : accessed May 27, 2024), "Allegonda Johanna Maria Leenders (1911-)".
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