About the day » Friday May 13, 1921Calender converter

• Charles de Harcourt († 1992)
• Abraham de Mooij, Rijnsburg († 1969)
• Bernardus Nicolaas Tobias Langenkamp († 1996)
• Alan Louis Cahn, San Francisco, California, VS († 1999)
• Andrina Johanna van Beek, Soest († 1987)
• Catharina Maria Knicknie, Alphen en Riel, Nederland († 2002)
• Anna ten Napel, Gilze en Rijen († 1922)
• Alfred Richard Beekman, Muskegon Mi VS († 2000)
• Catharina Maria Kniknie, Alphen en Riel († 2002)
• Alfred Richard BEEKMAN, Home on Pine St († 2000)

• Amanda Phillips (78), Covena, Toombs, Georgia, United States
• Bernardus Hendricus Wassenaar (0), Haarlem, Haarlem, Zuid-Holland, Nederland
• Aaltjen van der Vegt (64), Vollenhove, Nederland
• Cornelia Sas (84), Utrecht
• Alberic Rudolf Frans Willem Graaf van der Burch (76), Brussel
• Andries Paauw (0), Leiden, ZH, Nederland
• Adriana Opdam (70), Alphen aan den Rijn
• Antoinetta Catharina Maria de Jong (0), Winterswijk, Gelderland, Nederland
• Aaltjen van der Vegt (64), Vollenhove, Stad
• Aart Jansz Schep (79), Apeldoorn

• 1916 » Sachidananda Routray, Indian Oriya-language poet († 2004)
• 1918 » Balasaraswati, Indian dancer and instructor († 1984)
• 1918 » Gwyn Howells, Australian public servant († 1997)
• 1920 » Gareth Morris, English flute player († 2007)
• 1922 » Bea Arthur, American actress and singer († 2009)
• 1922 » Michael Ainsworth, English cricketer († 1978)
• 1922 » Otl Aicher, German graphic designer and typographer († 1991)
• 1923 » Ruth Adler Schnee, German-American textile designer and interior designer
• 1924 » Harry Schwarz, South African anti-apartheid leader, lawyer, and Ambassador († 2010)
• 1924 » Theodore Mann, American director and producer († 2012)

• 1903 » Apolinario Mabini, Filipino lawyer and politician, 1st Prime Minister of the Philippines (b. 1864)
• 1916 » Sholem Aleichem, Ukrainian-American author and playwright (b. 1859)
• 1921 » Jean Aicard, French author, poet, and playwright (b. 1848)
• 1926 » Libert H. Boeynaems, Belgian-American bishop (b. 1857)
• 1929 » Arthur Scherbius, German electrical engineer, invented the Enigma machine (b. 1878)
• 1930 » Fridtjof Nansen, Norwegian scientist, explorer, and academic, Nobel Prize laureate (b. 1861)
• 1938 » Charles Édouard Guillaume, Swiss-French physicist and academic, Nobel Prize laureate (b. 1861)
• 1941 » Ōnishiki Uichirō, Japanese sumo wrestler, the 26th Yokozuna (b. 1891)
• 1941 » Frederick Christian, English cricketer (b. 1877)
• 1945 » Tubby Hall, American drummer (b. 1895)

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. Jacoba
12. Grietje
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.
• March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
• March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
• July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
• August 23 » British airship R-38 experiences structural failure over Hull in England and crashes in the Humber Estuary. Of her 49 British and American training crew, only four survive.
• September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
• December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.

The temperature on May 13, 1921 was between 9.4 °C and 23.7 °C and averaged 16.5 °C. There was 8.0 hours of sunshine (51%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east.