The temperature on February 26, 1911 was between 2.5 °C and 7.5 °C and averaged 5.4 °C. There was 6.3 mm of rain. There was 3.8 hours of sunshine (36%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west-northwest. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
When copying data from this family tree, please include a reference to the origin: W.M. Poort, "Family tree Poort", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-familie-poort/I20446.php : accessed May 17, 2024), "Willem van der Heiden (1911-)".
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