About the day » Sunday June 21, 1931Calender converter

• Bokke Westra, Kollum, Groningen, Nederland († 2019)
• Cornelis Petrus Maria van Nunen, Helmond († 1933)
• Adrianus Marinus (Adri) Maas, Rotterdam († 2017)
• Berend van den Berg († 2011)
• Agnes Swinkels, Helden († 2016)
• Aukje Plantenga († 1933)
• christiane mariette CAVENAILE, Dour (Belgium) Hainaut († 1943)
• Derkje Tuzee, Emmen, Drenthe, Nederland († 1968)
• Aukje Plantenga († 1933)
• Barbara Wilhelmina Lambermon, Susteren († 2024)

• Adrianus Oskam (65), 's-Gravenhage
• Alexandrine Maria Francisca Roelandts (71), Beveren-Waas
• Adrianus Johannes Martinus Verswijveren (1), Halsteren, N-Br, NL
• Adriaantje Visser (62), Kethel en Spaland
• Adriana van Schaik (78), Haastrecht
• Albert Flierman (64), Wyoming (Kent, Michigan, USA)
• Anna Jetten (57), Woudenberg, Utrecht, Nederland
• Arend Bijl (69), Pernis
• Anna Catharina van Spanje (74), Rhenen
• Anna Colletta Lauwerijssens (66), Ossendrecht

• 1929 » Alexandre Lagoya, Egyptian-Greek guitarist and composer († 1999)
• 1930 » Gerald Kaufman, English journalist and politician, Shadow Foreign Secretary († 2017)
• 1930 » Mike McCormack, American football player and coach († 2013)
• 1931 » David Kushnir, Israeli Olympic long-jumper
• 1931 » Margaret Heckler, American journalist, lawyer, and politician, 15th United States Secretary of Health and Human Services
• 1931 » Zlatko Grgić, Croatian-Canadian animator, director, and screenwriter († 1988)
• 1932 » Bernard Ingham, English journalist and civil servant
• 1932 » Lalo Schifrin, Argentinian pianist, composer, and conductor
• 1932 » O.C. Smith, American R&B/jazz singer († 2001)
• 1933 » Bernie Kopell, American actor and comedian

• 1908 » Nikolai Rimsky-Korsakov, Russian composer and educator (b. 1844)
• 1914 » Bertha von Suttner, Austrian journalist and author, Nobel Prize laureate (b. 1843)
• 1929 » Leonard Trelawny Hobhouse, English sociologist, journalist, and academic (b. 1864)
• 1934 » Thorne Smith, American author (b. 1892)
• 1940 » Édouard Vuillard, French painter (b. 1868)
• 1940 » Smedley Butler, American general, Medal of Honor recipient (b. 1881)
• 1951 » Charles Dillon Perrine, American astronomer (b. 1867)
• 1951 » Gustave Sandras, French gymnast (b. 1872)
• 1952 » Wop May, Canadian captain and pilot (b. 1896)
• 1954 » Gideon Sundback, Swedish-American engineer, developed the zipper (b. 1880)

• 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, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
• The Netherlands had about 7.9 million citizens.
• January 7 » Guy Menzies flies the first solo non-stop trans-Tasman flight (from Australia to New Zealand) in 11 hours and 45 minutes, crash-landing on New Zealand's west coast.
• March 14 » Alam Ara, India's first talking film, is released.
• May 7 » The stand-off between criminal Francis Crowley and 300 members of the New York Police Department takes place in his fifth-floor apartment on West 91st Street, New York City.
• June 23 » Wiley Post and Harold Gatty take off from Roosevelt Field, Long Island in an attempt to circumnavigate the world in a single-engine plane.
• November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
• December 9 » The Constituent Cortes approves a constitution which establishes the Second Spanish Republic.

The temperature on June 21, 1931 was between 5.4 °C and 19.4 °C and averaged 14.1 °C. There was 11.4 hours of sunshine (68%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest.