The temperature on August 26, 1912 was between 10.7 °C and 17.5 °C and averaged 15.0 °C. There was 20.5 mm of rain. There was 0.3 hours of sunshine (2%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 17 » British polar explorer Captain Robert Falcon Scott reaches the South Pole, one month after Roald Amundsen.
January 23 » The International Opium Convention is signed at The Hague.
March 12 » The Girl Guides (later renamed the Girl Scouts of the USA) are founded in the United States.
October 18 » First Balkan War: King Peter I of Serbia issues a declaration "To the Serbian People", as his country joins the war.
November 2 » Bulgaria defeats the Ottoman Empire in the Battle of Lule Burgas, the bloodiest battle of the First Balkan War, which opens her way to Constantinople.
December 6 » The Nefertiti Bust is discovered.
Day of marriage November 24, 1938
The temperature on November 24, 1938 was between 2.4 °C and 8.5 °C and averaged 5.9 °C. There was 0.2 mm of rain during 0.2 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
June 24 » Pieces of a meteorite land near Chicora, Pennsylvania. The meteorite is estimated to have weighed 450metric tons when it hit the Earth's atmosphere and exploded.
September 30 » Britain, France, Germany and Italy sign the Munich Agreement, whereby Germany annexes the Sudetenland region of Czechoslovakia.
October 5 » In Nazi Germany, Jews' passports are invalidated.
October 31 » Great Depression: In an effort to restore investor confidence, the New York Stock Exchange unveils a fifteen-point program aimed to upgrade protection for the investing public.
November 14 » The Lions Gate Bridge, connecting Vancouver to the North Shore region, opens to traffic.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
When copying data from this family tree, please include a reference to the origin: Rob Slotemaker, "Family tree Slotemaker", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-slotemaker/I1049.php : accessed February 24, 2026), "Johannes Cornelis van der Zwet Slotemaker (1912-)".
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