The temperature on August 17, 1911 was between 9.8 °C and 21.0 °C and averaged 15.3 °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 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
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 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
September 24 » His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness.
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: Dimitri Reinderman, "Family tree Reinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-reinderman/I18455.php : accessed February 4, 2026), "Jan Pieter Haller (1911-)".
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