The temperature on May 2, 1917 was between 0.4 °C and 17.5 °C and averaged 10.5 °C. There was 11.5 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
June 4 » The first Pulitzer Prizes are awarded: Laura E. Richards, Maude H. Elliott, and Florence Hall receive the first Pulitzer for biography (for Julia Ward Howe). Jean Jules Jusserand receives the first Pulitzer for history for his work With Americans of Past and Present Days. Herbert B. Swope receives the first Pulitzer for journalism for his work for the New York World.
September 14 » The Russian Empire is formally replaced by the Russian Republic.
October 4 » World War I: The Battle of Broodseinde is fought between the British and German armies in Flanders.
October 24 » First World War: Italy suffers a disastrous defeat on the Austro-Italian front.
November 28 » The Estonian Provincial Assembly declares itself the sovereign power of Estonia.
Day of marriage March 20, 1940
The temperature on March 20, 1940 was between 5.1 °C and 10.7 °C and averaged 7.3 °C. There was 1.1 mm of rain during 0.7 hours. There was 3.2 hours of sunshine (26%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 8 » World War II: Britain introduces food rationing.
February 27 » Martin Kamen and Sam Ruben discover carbon-14.
March 16 » First person killed (James Isbister) in a German bombing raid on the UK in World War II during a raid on Scapa Flow in the Orkney Islands.
April 9 » World War II: Operation Weserübung: Germany invades Denmark and Norway.
May 15 » USSSailfish is recommissioned. It was originally the USS Squalus.
August 20 » World War II: British Prime Minister Winston Churchill makes the fourth of his famous wartime speeches, containing the line "Never was so much owed by so many to so few".
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I1040.php : accessed February 17, 2026), "Jannette Post (1917-1976)".
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