The temperature on October 31, 1911 was between 5.1 °C and 11.7 °C and averaged 8.5 °C. There was 3.2 mm of rain. There was 6.4 hours of sunshine (66%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
Day of marriage November 21, 1932
The temperature on November 21, 1932 was between 0.5 °C and 9.0 °C and averaged 5.7 °C. There was 0.5 mm of rain during 0.8 hours. The average windspeed was 3 Bft (moderate breeze) 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.
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/I167903.php : accessed October 16, 2026), "Peterdina van der Werf (1911-)".
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