The temperature on May 30, 1917 was between 9.6 °C and 19.8 °C and averaged 14.8 °C. There was 8.8 hours of sunshine (54%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
June 5 » World War I: Conscription begins in the United States as "Army registration day".
June 28 » World War I: Greece joins the Allied powers.
September 26 » World War I: The Battle of Polygon Wood begins.
October 24 » First World War: Italy suffers a disastrous defeat on the Austro-Italian front.
October 25 » Old Style date of the October Revolution in Russia.
About the surname Petrus Leopoldus Wilhelmus de Caluwe
When copying data from this family tree, please include a reference to the origin: P.M. Baert, "Family tree Baert", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-baert/I5277.php : accessed March 4, 2026), "Petrus Leopoldus Wilhelmus de Caluwe".
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