The temperature on May 25, 1911 was between 11.8 °C and 22.9 °C and averaged 16.8 °C. There was 6.4 hours of sunshine (40%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
January 26 » Glenn Curtiss flies the first successful American seaplane.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
When copying data from this family tree, please include a reference to the origin: Joke Koster, "Family tree Griffioen Jellema Friese Adel", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-griffioen-koster/I433889.php : accessed June 20, 2024), "Jan Jans de Vries (± 1883-????)".
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