The temperature on April 27, 1915 was between 6.7 °C and 19.1 °C and averaged 11.8 °C. There was 7.9 hours of sunshine (54%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
May 6 » Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
October 12 » World War I: British nurse Edith Cavell is executed by a German firing squad for helping Allied soldiers escape from Belgium
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
December 20 » World War I: The last Australian troops are evacuated from Gallipoli.
When copying data from this family tree, please include a reference to the origin: Theodorus Gerardus Marie Koken, "Family tree Theodorus Gerardus Marie Koken", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koken/I487.php : accessed February 2, 2026), "Petrus Tholen (1915-)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.