The temperature on May 30, 1910 was between 10.3 °C and 15.0 °C and averaged 12.7 °C. There was 2.7 mm of rain. There was 9.8 hours of sunshine (60%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
March 3 » Rockefeller Foundation: John D. Rockefeller Jr. announces his retirement from managing his businesses so that he can devote all his time to philanthropy.
May 31 » The South Africa Act comes into force, establishing the Union of South Africa.
August 29 » The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea.
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 21 » Sailors on board Brazil's warships including the Minas Gerais, São Paulo, and Bahia, violently rebel in what is now known as the Revolta da Chibata (Revolt of the Lash).
Day of marriage April 13, 1933
The temperature on April 13, 1933 was between 3.0 °C and 13.0 °C and averaged 7.7 °C. There was 10.9 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
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.
July 8 » The first rugby union test match between the Wallabies of Australia and the Springboks of South Africa is played at Newlands Stadium in Cape Town.
August 14 » Loggers cause a forest fire in the Coast Range of Oregon, later known as the first forest fire of the Tillamook Burn; it is not fully extinguished until September 5, after destroying 240,000 acres (970km).
September 8 » Ghazi bin Faisal became King of Iraq.
October 10 » A United Airlines Boeing 247 is destroyed by sabotage, the first such proven case in the history of commercial aviation.
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/I66567.php : accessed September 29, 2026), "Sieuwert Gelsema (1910-)".
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