About the day » Saturday June 11, 1921Calender converter

• († 1921)
• Alberdina Helmens, Wirdum, Groningen, Nederland († 1923)
• Barendina van Ginkel († 1974)
• Alexander Constance (Sacha) DE JONGH, Kampen Overijssel Netherlands († 2000)
• Adriaan Hulleman († 1940)
• Angie Bell Cottrell, Lincoln County, Kentucky, Verenigde Staten († 2014)
• Arie Ernst Mulder, Bandoeng, Indonesië († 2005)
• André Vandamme, Staden († 1921)
• Auwert Pool († 2009)
• Anna Bambacht († 1989)

• Abraham Metaal (77), rotterdam (zuid holland)
• Adriaantje van Westenbrugge (52), Kerkwerve
• Catharina Maria Delfgaauw (50), 's-Gravenhage Zuid-Holland Nederland
• Elisabeth Christina Cuijpers (0), Vlodrop, Limburg, Nederland
• Adrianus Dirk de Wilde (49), Sint Maartensdijk
• Derkje Sa (45), Zwolle, Nederland
• Carl Heinrich Zerna (49)
• Abraham Metaal (77), Heenvliet, Nederland
• Alma Nellie Willard (0), Norwalk, Los Angeles, California, United States
• Elisabeth Gezina van Diemen (11), Nieuwer-Amstel

• 1917 » Joseph B. Wirthlin, American businessman and religious leader († 2008)
• 1918 » Ruth Aarons, American table tennis player and manager († 1980)
• 1919 » Richard Todd, Irish-English actor († 2009)
• 1919 » Suleiman Mousa, Jordanian historian and author († 2008)
• 1920 » Hazel Scott, Trinidadian-American singer, actress, and pianist († 1981)
• 1920 » Keith Seaman, Australian lawyer and politician, 29th Governor of South Australia († 2013)
• 1920 » Shelly Manne, American drummer, composer, and bandleader († 1984)
• 1922 » Jean Sutherland Boggs, Peruvian-Canadian historian, academic, and civil servant († 2014)
• 1922 » Michael Cacoyannis, Greek Cypriot director, producer, and screenwriter († 2011)
• 1925 » Johnny Esaw, Canadian sportscaster († 2013)

• 1903 » Nikolai Bugaev, Russian mathematician and philosopher (b. 1837)
• 1911 » James Curtis Hepburn, American physician and missionary (b. 1815)
• 1913 » Mahmud Shevket Pasha, Ottoman general and politician, 279th Grand Vizier of the Ottoman Empire (b. 1856)
• 1914 » Adolphus Frederick V, Grand Duke of Mecklenburg-Strelitz (b. 1848)
• 1920 » William F. Halsey, Sr., American captain (b. 1853)
• 1924 » Théodore Dubois, French organist, composer, and educator (b. 1837)
• 1927 » William Attewell, English cricketer (b. 1861)
• 1934 » Lev Vygotsky, Belarusian-Russian psychologist and theorist (b. 1896)
• 1936 » Robert E. Howard, American author and poet (b. 1906)
• 1937 » R. J. Mitchell, English engineer, designed the Supermarine Spitfire (b. 1895)

• 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 September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
• The Netherlands had about 6.9 million citizens.
• March 17 » The Second Polish Republic adopts the March Constitution.
• June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
• July 10 » Belfast's Bloody Sunday: Sixteen people are killed and 161 houses destroyed during rioting and gun battles in Belfast, Northern Ireland.
• October 19 » The Portuguese Prime Minister and several officials are murdered in the Bloody Night coup.
• October 21 » President Warren G. Harding delivers the first speech by a sitting U.S. President against lynching in the deep South.
• December 22 » Opening of Visva-Bharati College, also known as Santiniketan College, now Visva Bharati University, India.

The temperature on June 11, 1921 was between 7.6 °C and 17.3 °C and averaged 12.6 °C. There was 6.5 hours of sunshine (39%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west.