About the day » Saturday April 9, 1921Calender converter

• Antonia Gerarda de Nooij, Apeldoorn († 1997)
• Annie WAGENAAR, Nes (Ameland) Friesland Netherlands († 1957)
• Adrianus Gerardus van Hooydonck, Nieuwmoer, Antwerpen, België († 2000)
• Stuifzand, Stuifzand (Ruinen), Drenthe, The Netherlands († 1921)
• Catharina Andriesina de Roode, Smilde, Drenthe, Nederland († 1980)
• Antonius van den Berg, Uden, Noord-Brabant, Nederland († 1921)
• adrianus KEIJZER, oud-beijerland († 2003)
• Adriana Petronella van der Heijden, Geldermalsen († 1921)
• Anna Helena (Albertus Wolters) Immink, Zwartemeer, Drenthe, Nederland († 1997)
• * Aartje Heikoop, Heukelum († 2002)

• Alexander van Zetten (74), Rhenen, Utrecht, Nederland
• Anna Maria Merkx (68), Boxtel, Boxtel, Noord-Brabant, Netherlands
• Aaltje Alles Allema (57), Ryptsjerk
• Angélique Adelaide Louise Caroline barones van Brienen (89), Parijs,75000,Paris,Île-de-France,France
• Aleida Johanna Willemsen (60), Lent
• Angélique Adélaïde Louise Caroline van Brienen de Grootelindt (88), Paris
• (68), Boxtel, Nederland
• Alida Hoogenboom (73), IJsselstein, Utrecht, Nederland
• America Emiline Dillon (71)
• Stam (0), Leerdam, Zuid-Holland, Nederland

• 1917 » Johannes Bobrowski, German songwriter and poet († 1965)
• 1918 » Jørn Utzon, Danish architect, designed the Sydney Opera House († 2008)
• 1919 » J. Presper Eckert, American engineer, invented the ENIAC († 1995)
• 1921 » Frankie Thomas, American actor († 2006)
• 1921 » Jean-Marie Balestre, French businessman († 2008)
• 1921 » Mary Jackson, African-American mathematician and aerospace engineer († 2005)
• 1921 » Yitzhak Navon, Israeli politician († 2015)
• 1922 » Carl Amery, German author and activist († 2005)
• 1923 » Leonard Levy, American historian and author († 2006)
• 1924 » Arthur Shaw, English professional footballer († 2015)

• 1909 » Helena Modjeska, Polish-American actress (b. 1840)
• 1915 » Raymond Whittindale, English rugby player (b. 1883)
• 1917 » James Hope Moulton, English philologist and scholar (b. 1863)
• 1922 » Hans Fruhstorfer, German entomologist and explorer (b. 1866)
• 1926 » Zip the Pinhead, American freak show performer (b. 1857)
• 1936 » Ferdinand Tönnies, German sociologist and philosopher (b. 1855)
• 1940 » Mrs Patrick Campbell, English actress (b. 1865)
• 1944 » Yevgeniya Rudneva, Ukrainian lieutenant and pilot (b. 1920)
• 1945 » Dietrich Bonhoeffer, German pastor and theologian (b. 1906)
• 1945 » Wilhelm Canaris, German admiral (b. 1887)

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.
• February 21 » Rezā Shāh takes control of Tehran during a successful coup.
• March 31 » The Royal Australian Air Force is formed.
• July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
• September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
• October 26 » The Chicago Theatre opens.
• December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.

The temperature on April 9, 1921 was between 3.8 °C and 16.6 °C and averaged 10.3 °C. There was 0.9 mm of rain. There was 6.2 hours of sunshine (46%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east.