The temperature on September 15, 1911 was between 5.1 °C and 17.6 °C and averaged 11.3 °C. There was 1.9 mm of rain. There was 5.1 hours of sunshine (40%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
Day of marriage February 18, 1933
The temperature on February 18, 1933 was between -4.0 °C and 4.0 °C and averaged -0.5 °C. There was 0.3 mm of rain. There was 2.2 hours of sunshine (22%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. 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.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
March 10 » The Long Beach earthquake affects the Greater Los Angeles Area leaving around 108 people dead.
May 2 » Germany's independent labor unions are replaced by the German Labour Front.
May 15 » All military aviation organizations within or under the control of the RLM of Germany were officially merged in a covert manner to form its Wehrmacht military's air arm, the Luftwaffe.
August 7 » The Kingdom of Iraq slaughters over 3,000 Assyrians in the village of Simele. This date is recognized as Martyrs Day or National Day of Mourning by the Assyrian community in memory of the Simele massacre.
August 27 » The first Afrikaans Bible is introduced during a Bible Festival in Bloemfontein.
November 15 » Thailand has its first election.
Day of death January 29, 1958
The temperature on January 29, 1958 was between -0.6 °C and 7.3 °C and averaged 2.5 °C. There was 7.4 hours of sunshine (83%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
May 24 » United Press International is formed through a merger of the United Press and the International News Service.
July 29 » U.S. President Dwight D. Eisenhower signs into law the National Aeronautics and Space Act, which creates the National Aeronautics and Space Administration (NASA).
August 29 » United States Air Force Academy opens in Colorado Springs, Colorado.
October 1 » The National Advisory Committee for Aeronautics is replaced by NASA.
October 7 » The 1958 Pakistani coup d'état inaugurates a prolonged period of military rule.
November 10 » The Hope Diamond is donated to the Smithsonian Institution by New York diamond merchant Harry Winston.
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/I166487.php : accessed October 22, 2026), "Wobbe Postma (1911-1958)".
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