The temperature on May 21, 1917 was between 12.1 °C and 23.3 °C and averaged 17.8 °C. There was 12.6 hours of sunshine (79%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the east-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.
March 1 » The Zimmermann Telegram is reprinted in newspapers across the United States after the U.S. government releases its unencrypted text.
April 9 » World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
August 18 » A Great Fire in Thessaloniki, Greece destroys 32% of the city leaving 70,000 individuals homeless.
August 28 » Ten Suffragettes are arrested while picketing the White House.
October 24 » First World War: Italy suffers a disastrous defeat on the Austro-Italian front.
November 26 » The National Hockey League is formed, with the Montreal Canadiens, Montreal Wanderers, Ottawa Senators, Quebec Bulldogs, and Toronto Arenas as its first teams.
When copying data from this family tree, please include a reference to the origin: Caspar Evers, "Family tree Evers - van Rijsbergen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-evers-van-rijsbergen/I2272.php : accessed March 4, 2026), "Wilhelmus Alexander Holtkamp (1890-????)".
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