The temperature on December 15, 1915 was between 0.4 °C and 3.0 °C and averaged 2.1 °C. There was 2.8 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-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.
January 31 » World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
March 20 » Albert Einstein publishes his general theory of relativity.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
July 7 » The First Battle of the Isonzo comes to an end.
August 17 » Jewish American Leo Frank is lynched in Marietta, Georgia after a 13-year-old girl is murdered.
September 5 » The pacifist Zimmerwald Conference begins.
Day of marriage April 18, 1938
The temperature on April 18, 1938 was between -2.4 °C and 8.4 °C and averaged 2.6 °C. There was 2.4 mm of rain during 1.3 hours. There was 8.1 hours of sunshine (58%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 28 » The World Land Speed Record on a public road is broken by Rudolf Caracciola in the Mercedes-Benz W195 at a speed of 432.7 kilometres per hour (268.9mph).
March 12 » Anschluss: German troops occupy and absorb Austria.
March 18 » Mexico creates Pemex by expropriating all foreign-owned oil reserves and facilities.
June 25 » Dr. Douglas Hyde is inaugurated as the first President of Ireland.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
October 14 » The first flight of the Curtiss P-40 Warhawk fighter plane.
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/I302964.php : accessed March 2, 2026), "Pieter Krijgsman (1915-)".
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