The temperature on January 29, 1915 was between -4.4 °C and 4.9 °C and averaged -0.1 °C. There was 1.6 mm of rain. There was 1.8 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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.
March 20 » Albert Einstein publishes his general theory of relativity.
May 17 » The last British Liberal Party government (led by H. H. Asquith) falls.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
July 28 » The United States begins a 19-year occupation of Haiti.
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.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I283634.php : accessed January 10, 2026), "Lambertina Maria Adriana Roovers (± 1914-1915)".
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