The temperature on April 21, 1911 was between 1.3 °C and 15.1 °C and averaged 9.7 °C. There was 4.6 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
January 15 » Palestinian Arabic-language Falastin newspaper founded.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage August 8, 1935
The temperature on August 8, 1935 was between 10.2 °C and 26.2 °C and averaged 19.0 °C. There was 11.4 hours of sunshine (75%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I59158.php : accessed February 6, 2026), "Grietje Sennema (1911-)".
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