About the day » Saturday May 21, 1921Calender converter

• Antje Hoogenes († 1998)
• Nn Kroezen, Hoogeveen († 1921)
• Adriana Henkes, Rotterdam († 2008)
• Aleda I. Hulst, MI, Verenigde Staten († 2016)
• Arie de Bloois († 2017)
• Albertina Alice CASTELEIN, Emelgem († 2004)
• Bernadette Gesina"Det" Westendorp, Haaksbergen († 2010)
• Anna Zaal, Bovenkerk, gem. Nieuwer-Amstel († 2005)
• Kroezen, Hoogeveen nederland († 1921)
• Antonia Maria Christina Elbers, Nijmegen, Gelderland, Nederland († 1976)

• Adrianus Weijts (1), Weesp
• Catrina Maria van Fraaijenhoven (95), Tiel
• Anna van der Putten (78), Boxtel
• Adrianus Desjardijn, Pernis
• Antje Govers (80), Den Helder
• Aaltje Vink (83), Assen, Drenthe, Nederland
• 'Joseph' Maria CONVENT (58), Zeveneken, 44077, Oost-Vlaanderen, Belgique
• Akke Haima (55), Leeuwarden, Friesland, Netherlands
• Arnoldina Geertruida Wilhelmina van de Loo (67), Nijmegen
• Antonius Johannes Mous (1), Woensdrecht (Woensdrecht) (Noord Brabant)

• 1919 » George P. Mitchell, American businessman and philanthropist († 2013)
• 1920 » Bill Barber, American tuba player and educator († 2007)
• 1920 » Forrest White, American businessman, co-founded the Music Man Company († 1994)
• 1921 » Andrei Sakharov, Russian physicist and academic, Nobel Prize laureate († 1989)
• 1921 » Sandy Douglas, English computer scientist and academic, designed OXO († 2010)
• 1923 » Ara Parseghian, American football player and coach († 2017)
• 1923 » Armand Borel, Swiss-American mathematician and academic († 2003)
• 1923 » Dorothy Hewett, Australian feminist poet, novelist and playwright († 2002)
• 1923 » Evelyn Ward, American actress († 2012)
• 1923 » Vernon Biever, American photographer († 2010)

• 1911 » Williamina Fleming, Scottish-American astronomer and academic (b. 1857)
• 1915 » Leonid Gobyato, Russian general and engineer (b. 1875)
• 1919 » Evgraf Fedorov, Russian mathematician, crystallographer, and mineralogist (b. 1853)
• 1920 » Venustiano Carranza, Mexican politician, 54th President of Mexico (b. 1859)
• 1925 » Hidesaburō Ueno, Japanese agriculturalist, guardian of Hachikō (b. 1871)
• 1926 » Ronald Firbank, English-Italian author (b. 1886)
• 1929 » Archibald Primrose, 5th Earl of Rosebery, English politician, Prime Minister of the United Kingdom (b. 1847)
• 1932 » Marcel Boulenger, French fencer and author (b. 1873)
• 1935 » Hugo de Vries, Dutch botanist and geneticist (b. 1848)
• 1935 » Jane Addams, American activist and author, co-founded Hull House, Nobel Prize laureate (b. 1860)

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

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Wilhelmina
6. Elisabeth
7. Adriana
8. Hendrika
9. Catharina
10. Petronella
11. Grietje
12. Jacoba
13. Aaltje
14. Geertruida
15. Jantje
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 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.
• February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
• March 1 » The Australian cricket team captained by Warwick Armstrong becomes the first team to complete a whitewash of The Ashes, something that would not be repeated for 86 years.
• July 10 » Belfast's Bloody Sunday: Sixteen people are killed and 161 houses destroyed during rioting and gun battles in Belfast, Northern Ireland.
• September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
• September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
• October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.

The temperature on May 21, 1921 was between 2.0 °C and 19.1 °C and averaged 12.6 °C. There was 12.7 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast.