The temperature on July 11, 1910 was between 9.8 °C and 21.9 °C and averaged 16.0 °C. There was 10.4 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 8 » The Boy Scouts of America is incorporated by William D. Boyce.
June 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
October 5 » In a revolution in Portugal the monarchy is overthrown and a republic is declared.
November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
November 14 » Aviator Eugene Burton Ely performs the first takeoff from a ship in Hampton Roads, Virginia, taking off from a makeshift deck on the USS Birmingham in a Curtiss pusher.
November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.
Christening day September 25, 1910
The temperature on September 25, 1910 was between 6.0 °C and 16.4 °C and averaged 11.9 °C. There was 4.1 hours of sunshine (34%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. 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 31 » The South Africa Act comes into force, establishing the Union of South Africa.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
September 12 » Premiere performance of Gustav Mahler's Symphony No. 8 in Munich (with a chorus of 852 singers and an orchestra of 171 players. Mahler's rehearsal assistant conductor was Bruno Walter).
September 22 » The Duke of York's Picture House opens in Brighton, now the oldest continually operating cinema in Britain.
October 5 » In a revolution in Portugal the monarchy is overthrown and a republic is declared.
Day of marriage May 23, 1931
The temperature on May 23, 1931 was between 4.8 °C and 22.0 °C and averaged 15.7 °C. There was 11.7 hours of sunshine (73%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
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/I66512.php : accessed February 10, 2026), "Grietje Boersma (1910-)".
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