The temperature on January 28, 1915 was between -6.6 °C and -1.3 °C and averaged -2.9 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-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.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
March 20 » Albert Einstein publishes his general theory of relativity.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
May 23 » World War I: Italy joins the Allies, fulfilling its part of the Treaty of London.
October 14 » World War I: Bulgaria joins the Central Powers.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of marriage May 29, 1935
The temperature on May 29, 1935 was between 10.8 °C and 22.3 °C and averaged 14.9 °C. There was 15.9 mm of rain during 2.6 hours. There was 2.2 hours of sunshine (14%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I87186.php : accessed March 2, 2026), "Lubertha Mangelaars (1915-)".
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