About the day » Sunday July 17, 1921Calender converter

• Adrianus Petrus Welten, Asten († 2007)
• Afton SILVER, Salt Lake City, Salt Lake County, Utah, United States of America († 1989)
• Alfons De Winter, Tremelo († 2005)
• Allen Kenneth WHITELEY, Meander, Tasmania, Australia († 1992)
• Bernardus Lambertus Manders 11APN, Wellerlooi, Limburg, Netherlands († 1974)
• Anna van Trotsenburg, Rotterdam
• Alice Stulens, Bilzen († 2003)
• Abraham Winnik, Amsterdam, Noord-Holland, Nederland († 1942)
• Agnes Christiana margaretha de Wit, Zijpe († 2004)
• Agnes Christina Margaretha de Wit, Zijpe († 2004)

• Alje SIRKS Van Der OOST (70), Goudswaard
• Afiena Dijksterhuis (34), Groningen
• Otte Bos (0), Losser
• Barbara Kemel (79)
• Cornelis Maaskant (84), Hillergersberg gem. Rotterdam, Zuid-Holland, Nederland NED
• Cornelis Johannes Venus (62), Geertruidenberg
• Dingena Willemina Dane (2), Stavenisse, Zeeland, Nederland
• Anthonie Cornelis Trommel (1), Schiedam, Zuid-Holland, Nederland
• Arie Bosch (0), Rotterdam
• Arnoldus Jacobus Menting (34), Didam (Montferland)

• 1918 » Carlos Manuel Arana Osorio, Guatemalan soldier and politician, President of Guatemala († 2003)
• 1920 » Gordon Gould, American physicist and academic, invented the laser († 2005)
• 1920 » Juan Antonio Samaranch, Spanish businessman, 7th President of the International Olympic Committee († 2010)
• 1921 » František Zvarík, Slovak actor († 2008)
• 1921 » George Barnes, American guitarist, producer, and songwriter († 1977)
• 1921 » Louis Lachenal, French mountaineer († 1955)
• 1921 » Mary Osborne, American guitarist († 1992)
• 1921 » Toni Stone, American baseball player († 1996)
• 1923 » Jeanne Block, American psychologist († 1981)
• 1923 » John Cooper, English car designer, co-founded the Cooper Car Company († 2000)

• 1900 » Thomas McIlwraith, Scottish-Australian politician, 8th Premier of Queensland (b. 1835)
• 1907 » Hector Malot, French author and critic (b. 1830)
• 1912 » Henri Poincaré, French mathematician, physicist, and engineer (b. 1854)
• 1918 » Victims of the Shooting of the Romanov family
• 1925 » Lovis Corinth, German painter (b. 1858)
• 1928 » Álvaro Obregón, Mexican general and politician, 39th President of Mexico (b. 1880)
• 1928 » Giovanni Giolitti, Italian politician, 13th Prime Minister of Italy (b. 1842)
• 1932 » Rasmus Rasmussen, Norwegian actor, singer, and director (b. 1862)
• 1935 » George William Russell, Irish poet and painter (b. 1867)
• 1942 » Robina Nicol, New Zealand photographer and suffragist (b. 1861)

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 22 » After Russian forces under Baron Roman von Ungern-Sternberg drive the Chinese out, the Bogd Khan is reinstalled as the emperor of Mongolia.
• February 25 » Georgian capital Tbilisi falls to the invading Russian forces after heavy fighting and the Russians declare the Georgian Soviet Socialist Republic.
• March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
• May 19 » The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.
• July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
• November 14 » The Communist Party of Spain is founded, and issues the first edition of Mundo obrero.

The temperature on July 17, 1921 was between 14.9 °C and 28.1 °C and averaged 20.7 °C. There was 1.4 hours of sunshine (9%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest.