The temperature on October 17, 1911 was between 2.3 °C and 14.8 °C and averaged 8.0 °C. There was 9.0 hours of sunshine (85%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
September 29 » Italy declares war on the Ottoman Empire.
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.
Day of death October 20, 1911
The temperature on October 20, 1911 was between 9.3 °C and 17.4 °C and averaged 13.0 °C. There was 1.3 mm of rain. There was 2.9 hours of sunshine (28%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
May 23 » The New York Public Library is dedicated.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
September 29 » Italy declares war on the Ottoman Empire.
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/I166491.php : accessed October 8, 2026), "Trientje van der Velde (1911-1911)".
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