The temperature on December 5, 1917 was between -8.9 °C and -3.0 °C and averaged -5.6 °C. There was 4.6 hours of sunshine (58%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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 announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
July 17 » King George V issues a Proclamation stating that the male line descendants of the British Royal Family will bear the surname Windsor.
July 27 » World War I: The Allies reach the Yser Canal at the Battle of Passchendaele.
October 31 » World War I: Battle of Beersheba: The "last successful cavalry charge in history".
November 26 » The Manchester Guardian publishes the 1916 secret Sykes-Picot Agreement between the United Kingdom and France.
December 6 » Finland declares independence from Soviet Russia.
Day of death January 19, 1971
The temperature on January 19, 1971 was between 4.1 °C and 9.0 °C and averaged 6.7 °C. There was 2.4 mm of rain during 3.6 hours. There was 0.9 hours of sunshine (11%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 8 » The NASDAQ stock market index opens for the first time.
March 18 » Peru: a landslide crashes into Yanawayin Lake, killing 200 people at the mining camp of Chungar.
July 11 » Copper mines in Chile are nationalized.
July 15 » The United Red Army is founded in Japan.
August 15 » Bahrain gains independence from the United Kingdom.
November 10 » In Cambodia, Khmer Rouge forces attack the city of Phnom Penh and its airport, killing 44, wounding at least 30 and damaging nine aircraft.
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I97005.php : accessed January 23, 2026), "Zegert van der Plas (1917-1971)".
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