The temperature on September 16, 1940 was between 4.3 °C and 15.5 °C and averaged 11.7 °C. There was 1.9 mm of rain during 2.1 hours. There was 3.8 hours of sunshine (30%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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.
February 7 » The second full-length animated Walt Disney film, Pinocchio, premieres.
February 10 » Cartoon characters Tom and Jerry make their debut with Puss Gets the Boot.
May 15 » Richard and Maurice McDonald open the first McDonald's restaurant.
August 20 » In Mexico City, exiled Russian revolutionary Leon Trotsky is fatally wounded with an ice axe by Ramón Mercader. He dies the next day.
September 7 » Romania returns Southern Dobruja to Bulgaria under the Treaty of Craiova.
September 15 » World War II: The climax of the Battle of Britain, when the Royal Air Force shoots down large numbers of Luftwaffe aircraft.
Day of death September 18, 1940
The temperature on September 18, 1940 was between 11.6 °C and 17.2 °C and averaged 14.3 °C. There was 5.3 hours of sunshine (42%). The average windspeed was 4 Bft (moderate breeze) 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.
May 15 » Richard and Maurice McDonald open the first McDonald's restaurant.
May 15 » World War II: After fierce fighting, the poorly trained and equipped Dutch troops surrender to Germany, marking the beginning of five years of occupation.
July 10 » World War II: Six days before Adolf Hitler issues his Directive 16 to the combined Wehrmacht armed forces for Operation Sea Lion, the Kanalkampf shipping attacks against British maritime convoys begin, in the leadup to initiating the Battle of Britain.
July 20 » California opens its first freeway, the Arroyo Seco Parkway.
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.
December 14 » Plutonium (specifically Pu-238) is first isolated at Berkeley, California.
When copying data from this family tree, please include a reference to the origin: Yvon Nijland, "Family tree Vent", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-vent/I82.php : accessed March 8, 2026), "Jacob Johan VENT (1940-1940)".
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