The temperature on December 12, 1911 was between 0.5 °C and 6.4 °C and averaged 3.0 °C. There was 5.5 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
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.
Day of death April 25, 1928
The temperature on April 25, 1928 was between 7.3 °C and 21.5 °C and averaged 14.5 °C. There was 12.4 hours of sunshine (86%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Olaf Andersen, "Andersen family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-andersen/I5663.php : accessed March 5, 2026), "Grietje de Pater (1911-1928)".
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