The temperature on September 11, 1910 was between 10.2 °C and 18.9 °C and averaged 14.2 °C. There was 0.2 mm of rain. There was 1.3 hours of sunshine (10%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 16 » The oldest existing indoor ice hockey arena still used for the sport in the 21st century, Boston Arena, opens for the first time.
May 6 » George V becomes King of Great Britain, Ireland, and many overseas territories, on the death of his father, Edward VII.
May 11 » An act of the U.S. Congress establishes Glacier National Park in Montana.
June 19 » The first Father's Day is celebrated in Spokane, Washington.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
July 16 » John Robertson Duigan makes the first flight of the Duigan pusher biplane, the first aircraft built in Australia.
Day of death June 20, 1911
The temperature on June 20, 1911 was between 9.9 °C and 18.0 °C and averaged 13.3 °C. There was 9.6 mm of rain. There was 3.0 hours of sunshine (18%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
January 21 » The first Monte Carlo Rally takes place.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
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.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
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/I118700.php : accessed January 8, 2026), "Aaltje Kootstra (1910-1911)".
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