The temperature on December 15, 1917 was between 1.1 °C and 6.2 °C and averaged 3.6 °C. There was 1.0 mm of rain. There was 2.7 hours of sunshine (35%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west-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.
February 23 » First demonstrations in Saint Petersburg, Russia. The beginning of the February Revolution (March 8 in the Gregorian calendar).
March 2 » The enactment of the Jones–Shafroth Act grants Puerto Ricans United States citizenship.
May 27 » Pope Benedict XV promulgates the 1917 Code of Canon Law, the first comprehensive codification of Catholic canon law in the legal history of the Catholic Church.
October 25 » Old Style date of the October Revolution in Russia.
November 5 » October Revolution: Lenin calls for the October Revolution.
November 26 » The Manchester Guardian publishes the 1916 secret Sykes-Picot Agreement between the United Kingdom and France.
Day of death August 1, 1970
The temperature on August 1, 1970 was between 12.2 °C and 25.4 °C and averaged 19.4 °C. There was 10.5 hours of sunshine (68%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Gijsbertus Cornelis (Bert) Severijn, "Family tree Severijn", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-severijn/I10281.php : accessed February 11, 2026), "Clarence Marema (1917-1970)".
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