The temperature on November 12, 1909 was between 6.0 °C and 10.9 °C and averaged 9.5 °C. There was 3.8 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the west. Source: KNMI
February 15 » The Flores Theater fire in Acapulco, Mexico kills 250.
April 11 » The city of Tel Aviv is founded.
August 30 » Burgess Shale fossils are discovered by Charles Doolittle Walcott.
September 23 » The novel Le Fantôme de l'Opéra (The Phantom of the Opera), by Gaston Leroux, is published as a serialization in Le Gaulois.
September 30 » The Cunard Line's RMS Mauretania makes a record-breaking westbound crossing of the Atlantic, that will not be bettered for 20 years.
December 10 » Selma Lagerlöf becomes the first female writer to win the Nobel Prize in Literature.
Day of marriage August 15, 1934
The temperature on August 15, 1934 was between 10.5 °C and 20.5 °C and averaged 15.2 °C. There was 6.7 hours of sunshine (45%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I888.php : accessed October 17, 2026), "WILLEMINA de ZWART (1909-)".
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