About the day » Friday May 21, 1920Calender converter

• Antonetta Johanna IJpelaar, Dongen, Noord-Brabant, Nederland († 1921)
• Aukje Harmens Elgersma, Spannum, Friesland, Nederland († 1986)
• Arthur Charles Heilig, Delaware, Sanilac, Michigan, United States († 2001)
• Alijda Snijders, Amersfoort, Gemeente Amersfoort, Utrecht, Nederland († 2012)
• Anna van Pul, Rucphen († 2003)
• (Willemina) Schutte († 1965)
• Angelina Maria Suilen, Swalmen,, Limburg, Nederland († 1984)
• Aukje Elgersma, Spannum, Friesland, Nederland († 1986)
• Arend Jan Andreae, Assen († 2006)
• Andries Faber, Hardegarijp († 1984)

• Bernardus van Gastel (83), Oostende (België)
• Bernadina Delia Haanen (68), Browns Valley, Traverse, Minnesota
• Tjitske van der Veen (58), St-Anneparochie
• Bastiaan KUIPER (0), Slochteren Groningen Netherlands
• Anna Cox (52), Eindhoven, Noord-Brabant, Nederland
• Anna Catharina Wijnands (41), Maastricht
• Bernardus van Gastel (83), Oostende, West-Vlaanderen, België
• Arend Joostes Greven (70), Amsterdam
• Adriana Maria Zonhoven (71), Den Haag,-
• Alois DE LOOR (74), Vrasene,9120,Oost Vlaanderen,Vlaams Gewest,Belgie

• 1917 » Raymond Burr, Canadian-American actor and director († 1993)
• 1918 » Anthony Steel, English actor and singer († 2001)
• 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 » 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. Petrus
9. Adrianus
10. Jacobus
11. Jacob
12. Wilhelmus
13. Dirk
14. Albert
15. Gerardus
16. Antonius

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

• 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 6.8 million citizens.
• January 10 » League of Nations Covenant enters into force. On January 16 the organization holds its first council meeting, in Paris.
• January 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
• August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
• October 25 » After 74 days on hunger strike in Brixton Prison, England, the Sinn Féin Lord Mayor of Cork, Terence MacSwiney dies.
• November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
• November 7 » Patriarch Tikhon of Moscow issues a decree that leads to the formation of the Russian Orthodox Church Outside Russia.

The temperature on May 21, 1920 was between 5.4 °C and 14.1 °C and averaged 10.6 °C. There was 3.0 mm of rain. There was 0.3 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north.