The temperature on September 22, 1911 was between 5.4 °C and 18.3 °C and averaged 11.4 °C. There was 7.9 hours of sunshine (64%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
Day of death September 1, 1963
The temperature on September 1, 1963 was between 11.2 °C and 21.0 °C and averaged 16.2 °C. There was 0.3 mm of rain during 0.3 hours. There was 9.8 hours of sunshine (72%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 2 » Vietnam War: The Viet Cong wins its first major victory, at the Battle of Ap Bac.
February 5 » The European Court of Justice's ruling in Van Gend en Loos v Nederlandse Administratie der Belastingen establishes the principle of direct effect, one of the most important, if not the most important, decisions in the development of European Union law.
June 12 » NAACP field secretary Medgar Evers is murdered in front of his home in Jackson, Mississippi by Ku Klux Klan member Byron De La Beckwith during the civil rights movement.
July 12 » Pauline Reade, 16, disappears in Gorton, England, the first victim in the Moors murders.
August 8 » Great Train Robbery: In England, a gang of 15 train robbers steal £2.6million in bank notes.
September 16 » Malaysia is formed from the Federation of Malaya, Singapore, North Borneo (Sabah) and Sarawak. However, Singapore soon leaves this new country.
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/I96805.php : accessed December 29, 2025), "Jan Koster (1911-1963)".
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