About the day » Thursday September 12, 1940Calender converter

• Eduard Marius van Beyma, Leeuwarden, Friesland, Nederland († 2020)
• Henk Kremers († 2004)
• Franciscus van der Mast, Wuustwezel († 1940)
• Hilbrand van den Bos, Heerenveen († 2006)
• Arend van Duijn, Katwijk, Zuid-Holland, Nederland († 2009)
• Hilda Ludovica Victoria GEERTS, Balen (BE) († 2003)
• Frederika Hulleman, Apeldoorn (GE( († 1983)
• Jan Hendrik Horsman († 1999)
• Dirk Macdaniel, Goudenrak, Zuid-Holland, Nederland († 1945)
• Hendrik Jan (Henk) van Raalte, Enschede, Overijssel, Nederland († 2015)

• Alida Helena van Moorsel (70), Ginneken (Breda), Noord Brabant,Nederland
• Heiligers (0), Rotterdam, Zuid-Holland, Nederland
• Adrianus Josephus Weijermans (66), Nijmegen
• Anna Maria Hofstede (67), Vlaardinger-Ambacht
• Anna (Antje) Maria HOFSTEDE (67), Vlaardinger-Ambacht,, Zuid-Holland, Nederland
• Benjamin Cornelis van Ligten (22), Malang
• Annegien Slenema (68), Norg, Drenthe, Nederland
• Anna Caroline Möhlmann (75), Velzen
• Adriaan van Etten (24), Gilze en Rijen
• Antonius Aloysius Buijs (46), Maastricht, Limburg, Nederland

• 1938 » Claude Ruel, Canadian ice hockey player and coach († 2015)
• 1938 » Judy Clay, American soul and gospel singer († 2001)
• 1938 » Tatiana Troyanos, American operatic soprano († 1993)
• 1939 » Henry Waxman, American lawyer and politician
• 1939 » Pablo McNeil, Jamaican track and field sprinter and sprinting coach († 2011)
• 1939 » Phillip Ramey, American pianist and composer
• 1940 » Linda Gray, American model and actress
• 1940 » Mickey Lolich, American baseball player
• 1940 » Stephen J. Solarz, American academic and politician († 2010)
• 1942 » Michel Drucker, French journalist

• 1919 » Leonid Andreyev, Russian author and playwright (b. 1871)
• 1923 » Jules Violle, French physicist and academic (b. 1841)
• 1927 » Sarah Frances Whiting, American physicist and astronomer (b. 1847)
• 1942 » Valentine Baker, Welsh co-founder of the Martin-Baker Aircraft Company (b. 1888)
• 1945 » Hajime Sugiyama, Japanese field marshal and politician, 44th Japanese Minister of War (b. 1880)
• 1949 » Erik Adolf von Willebrand, Finnish physician (b. 1870)
• 1953 » Hugo Schmeisser, German engineer (b. 1884)
• 1953 » James Hamilton, 3rd Duke of Abercorn, English politician, Governor of Northern Ireland (b. 1869)
• 1953 » Lewis Stone, American actor (b. 1879)
• 1956 » Sándor Festetics, Hungarian politician, Hungarian Minister of War (b. 1882)

1. Jan
2. Johannes
3. Cornelis
4. Hendrik
5. Willem
6. Gerrit
7. Pieter
8. Jacob
9. Adrianus
10. Robert
11. Petrus
12. Jacobus
13. Wilhelmus
14. Gerardus
15. Dirk
16. Arie

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Wilhelmina
7. Hendrika
8. Adriana
9. Catharina
10. Petronella
11. Geertruida
12. Jacoba
13. Annie
14. Margaretha
15. Marie
16. Helena

• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• 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.
• The Netherlands had about 8.8 million citizens.
• July 19 » World War II: Battle of Cape Spada: The Royal Navy and the Regia Marina clash; the Italian light cruiser Bartolomeo Colleoni sinks, with 121 casualties.
• July 27 » The animated short A Wild Hare is released, introducing the character of Bugs Bunny.
• August 26 » Chad becomes the first French colony to join the Allies under the administration of Félix Éboué, France's first black colonial governor.
• August 31 » Pennsylvania Central Airlines Trip 19 crashes near Lovettsville, Virginia. The CAB investigation of the accident is the first investigation to be conducted under the Bureau of Air Commerce act of 1938.
• October 15 » President Lluís Companys of Catalonia is executed by the Francoist government.
• November 16 » New York City's "Mad Bomber" George Metesky places his first bomb at a Manhattan office building used by Consolidated Edison.

The temperature on September 12, 1940 was between 5.2 °C and 14.6 °C and averaged 10.9 °C. There was 3.8 mm of rain during 4.0 hours. There was 2.9 hours of sunshine (22%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest.