The temperature on February 8, 1930 was between -3.3 °C and 1.9 °C and averaged -1.2 °C. There was 7.1 hours of sunshine (75%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 18 » While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
April 22 » The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
June 1 » The Deccan Queen is introduced as first intercity train between Bombay VT (Now Mumbai CST) and Poona (Pune) to run on electric locomotives.
June 21 » One-year conscription comes into force in France.
October 5 » British airship R101 crashes in France en route to India on its maiden voyage.
Day of death September 17, 1940
The temperature on September 17, 1940 was between 13.4 °C and 19.0 °C and averaged 15.6 °C. There was 0.7 mm of rain during 0.6 hours. There was 3.1 hours of sunshine (25%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the 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 19 » You Nazty Spy!, the first Hollywood film of any kind to satirize Adolf Hitler and the Nazis premieres, starring The Three Stooges, with Moe Howard as the character "Moe Hailstone" satirizing Hitler.
February 28 » Basketball is televised for the first time (Fordham University vs. the University of Pittsburgh in Madison Square Garden).
June 8 » World War II: The completion of Operation Alphabet, the evacuation of Allied forces from Narvik at the end of the Norwegian Campaign.
August 18 » World War II: The Hardest Day air battle, part of the Battle of Britain. At that point, the largest aerial engagement in history with heavy losses sustained on both sides.
September 6 » King Carol II of Romania abdicates and is succeeded by his son Michael. General Ion Antonescu becomes the Conducător of Romania.
October 28 » Second World War: Greece rejects Italy's ultimatum. Italy invades Greece through Albania a few hours later.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I465286.php : accessed January 13, 2026), "Johannes Kroes (± 1909-1940)".
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