About the day » Friday May 21, 1920Calender converter

• Alberdina Weerd, Apeldoorn, Apeldoorn, Gelderland, Nederland († 1942)
• (Willemina) Schutte († 1965)
• Arthur Charles Heilig, Delaware, Sanilac, Michigan, United States († 2001)
• Alfons Verlackt, Antwerpen, Antwerpen, Vlaanderen, België († 1991)
• Bep Alsemgeest († 2009)
• Angela Traverso, Gavi (AL) († 2008)
• Betje Izak TURKSMA, Drachten († 1942)
• Antonius Petrus Lodewijks, Etten-Leur (Etten-Leur) (Noord-Brabant) († 2008)
• Arend Jan Andreae, Assen († 2006)
• Antonius Hubertus Dolmans, Itteren, Maastricht († 1972)

• Bouwina Berendina Bots (48), Rotterdam
• Bernardus van Gastel (83), Oostende, West-Vlaanderen, België
• Bastiaan KUIPER (0), Slochteren Groningen Netherlands
• Adriana Johanna Damman (64), Vogelenzang, NH, Nederland
• Zaal, Rotterdam
• Aagje (2) ZOET (86), Vlaardingen, Zuid-Holland, Nederland
• Antonia \van Zeelst\ (67), Baarn, Utrecht, Nederland
• Anna Catharina Wijnands (41), Maastricht, Limburg, Nederland
• Aagje Zoet (86), Vlaardingen
• Tjitske van der Veen (58), St-Anneparochie

• 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 2 » The second Palmer Raid, ordered by the US Department of Justice, results in 6,000 suspected communists and anarchists being arrested and held without trial.
• January 7 » The New York State Assembly refuses to seat five duly elected Socialist assemblymen.
• January 10 » League of Nations Covenant enters into force. On January 16 the organization holds its first council meeting, in Paris.
• January 16 » Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
• January 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
• April 25 » At the San Remo conference, the principal Allied Powers of World War I adopt a resolution to determine the allocation of Class "A" League of Nations mandates for administration of the former Ottoman-ruled lands of the Middle East.

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.