About the day » Thursday June 30, 1921Calender converter

• Armand Gerard Vallentin Lambrechts, Rijkel, België († 1973)
• Anna Maria Commandeur, Beemster, Noord-Holland, Nederland († 1988)
• Anna Maria (Anna) Bogaert, Walsoorden,Hulst († 2017)
• Almon Carpenter, Wister, LeFlore Co., OK († 1923)
• Antonius Fransiscus Graafmans, Bergen op Zoom († 1977)
• Anna Antonia Gesiena Frederika Veneman, Arnhem († 1987)
• Anna Maria Henderika van den End, Nederland († 1972)
• Angenita Helena Johanna de Koster, Rotterdam († 1999)
• Catharina van Warmerdam, Spaarndam († 2016)
• Anni Huber († 1998)

• Ellen Rebecca Ortlip (81), Wyomissing, Berks, Pennsylvania, Verenigde Staten
• Cornelis Marinus van Rees (60), Sliedrecht, Zuid-Holland, Nederland
• Emelia Maria PIETERS (38), Mesen,8957,West Vlaanderen,Vlaams Gewest,Belgie,Belgie
• Christiaan Avontuur (82), Made
• Allegonda Hubertina Utens (68), Den Haag,-
• Hofman, Rotterdam
• "Louis" Marie Noëmy Gardey de Soos (71), Angers, Maine-et-Loire, France
• Albertje Bloupot (77), Noordbroek (gem. Midden-Groningen)
• Albertje Blouwpot (77), Noordbroek, Groningen, Nederland
• Arent Groeneboer (36), Utrecht

• 1917 » Lena Horne, American actress, singer, and activist († 2010)
• 1917 » Susan Hayward, American actress († 1975)
• 1917 » Willa Kim, American costume designer († 2016)
• 1919 » Ed Yost, American inventor of the modern hot air balloon († 2007)
• 1920 » Eleanor Ross Taylor, American poet and educator († 2011)
• 1921 » Washington SyCip, American-Filipino accountant († 2017)
• 1922 » Al Besselink, American professional golfer
• 1923 » Andy Jack, English footballer
• 1924 » Max Trepp, Swiss sprinter
• 1925 » Fred Schaus, American basketball player and coach († 2010)

• 1908 » Thomas Hill, American painter (b. 1829)
• 1913 » Alphonse Kirchhoffer, French fencer (b. 1873)
• 1916 » Eunice Eloisae Gibbs Allyn, American correspondent, author, and poet (b. 1847)
• 1917 » Antonio de La Gándara, French painter and illustrator (b. 1861)
• 1917 » Dadabhai Naoroji, Parsi intellectual, educator, cotton trader, and an early Indian political and social leader (b. 1825)
• 1919 » John William Strutt, 3rd Baron Rayleigh, English physicist and academic, Nobel Prize laureate (b. 1842)
• 1932 » Bruno Kastner, German actor, producer, and screenwriter (b. 1890)
• 1934 » Erich Klausener, German soldier and politician (b. 1885)
• 1934 » Gustav Ritter von Kahr, German lawyer and politician, Minister-President of Bavaria (b. 1862)
• 1934 » Karl Ernst, German soldier (b. 1904)

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.
• January 12 » Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.
• 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 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
• July 22 » Rif War: The Spanish Army suffers its worst military defeat in modern times to the Berbers of the Rif region of Spanish Morocco.
• October 26 » The Chicago Theatre opens.

The temperature on June 30, 1921 was between 10.4 °C and 16.2 °C and averaged 12.8 °C. There was 0.3 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest.