About the day » Saturday June 15, 1940Calender converter

• Anna Helena Baars Baars, Sliedrecht († 1940)
• Duane Darwin Zwart, Edgerton (Pipestone County) (Minnesota) († 1993)
• Jacques Albert Hillewig, Gent († 1987)
• Florent Vanbergen, Wellen, België († 2007)
• Doodgeboren kind Vos, Valkenswaard († 1940)
• Johannes Hermanus Temming, Utrecht († 2008)
• Cornelis Petrus Huigsloot, Baarn († 1941)
• Maria Hermeta Stokman, Heemskerk († 1983)
• Johannes Hendrik Andreas Maria (Jan) de Graaff, Amsterdam, Nederland († 2017)
• Lúcia Maier, São Paulo, Brasil († 1940)

• Bernardus Geerts (69), Wernhout
• Annigje Los (51), Oldemarkt
• Arend te Brakel (84), Hengelo
• Antonia Maria van Hoof (72), Tilburg (Noord-Brabant)
• Adrianus Rijsdijk (38), Rotterdam
• Arnoldus Johannes de Bruijn (63), Rotterdam
• Auke van der Gaast (83), Sloten
• Bridget O'Meara (74), Michigan
• Arie Gille (75), Schiedam, Nederland
• Anthonius Johannes Hol (80), Alphen, Gelderland, Nederland

• 1937 » Pierre Billon, Swiss-Canadian author and screenwriter
• 1937 » Waylon Jennings, American singer-songwriter and guitarist († 2002)
• 1938 » Billy Williams, American baseball player and coach
• 1939 » Ward Connerly, American activist and businessman, founded the American Civil Rights Institute
• 1941 » Harry Nilsson, American singer-songwriter († 1994)
• 1941 » Neal Adams, American illustrator
• 1942 » Ian Greenberg, Canadian broadcaster, founded Astral Media
• 1942 » John E. McLaughlin, American diplomat
• 1942 » Peter Norman, Australian sprinter († 2006)
• 1943 » Johnny Hallyday, French singer and actor († 2017)

• 1917 » Kristian Birkeland, Norwegian physicist and academic (b. 1867)
• 1934 » Alfred Bruneau, French cellist and composer (b. 1857)
• 1938 » Ernst Ludwig Kirchner, German painter and illustrator (b. 1880)
• 1941 » Evelyn Underhill, English mystic and author (b. 1875)
• 1941 » Otfrid Foerster, German neurologist and physician (b. 1873)
• 1945 » Count Albert von Mensdorff-Pouilly-Dietrichstein, Austrian diplomat
• 1961 » Giulio Cabianca, Italian racing driver (b. 1923)
• 1961 » Peyami Safa, Turkish journalist and author (b. 1899)
• 1962 » Alfred Cortot, Swiss pianist and conductor (b. 1877)
• 1967 » Tatu Kolehmainen, Finnish runner (b. 1885)

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.
• 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.
• May 5 » World War II: Norwegian refugees form a government-in-exile in London.
• July 19 » World War II: Army order 112 forms the Intelligence Corps of the British Army.
• August 8 » The "Aufbau Ost" directive is signed by Wilhelm Keitel.
• November 20 » World War II: Hungary becomes a signatory of the Tripartite Pact, officially joining the Axis powers.
• November 27 » In Romania, the ruling Iron Guard fascist party assassinates over 60 of arrested King Carol II of Romania's aides and other political dissidents.

The temperature on June 15, 1940 was between 11.7 °C and 18.1 °C and averaged 14.6 °C. There was 0.2 mm of rain during 0.3 hours. There was 0.8 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast.