About the day » Monday July 18, 1921Calender converter

• Koster, Nijmegen
• Antonius Kusters, Wellerlooi († 2006)
• Aloysius Josephus Wynants, Lichtaart, Belgie († 2003)
• Adriana Maria Hartveld, Nieuwveen,, Zuid-Holland, Nederland († 2001)
• Albertus Meijer, St Nicolaasga, Doniawerstal, Friesland, Nederland († 1999)
• Alice Abbas, Ackley, Hardin County, Iowa († 2002)
• * Hendrika (Riek) ter Beek, Spakenburg († 1999)
• Anni BEXKENS, Goch (D) († 2001)
• Arend Sjirks Bangma, Sondel, Friesland, Nederland († 1995)
• Arthur Richard Dieken, Chippewa County, Minnesota († 2004)

• Metselaar (0), Hollandscheveld
• Alida Maria Krens (67), Den Haag, Zuid-Holland, Nederland
• Annie Margaret Nel (30), Greytown (Ntl/Z-A)
• Adrianus Luiken (82), Breda, Noord-Brabant, Nederland
• Adrianus Luiken (82), Breda, Noord Brabant, Nederland
• Alcindo de Moraes Rosa (11), Itapetininga, São Paulo, Brasil
• Adriaan Marinus de Jong (33), Loon op Zand, Noord-Brabant, Nederland
• Antje Broers Boonstra (92), Menaldum, Menaldumadeel, FRI, Nederland
• Arend Hanning (77), Wildervank, Groningen, Nederland
• Adriaan Martinus de Jong (33)

• 1919 » Lilia Dale, Italian actress
• 1920 » Eric Brandon, English race car driver and businessman († 1982)
• 1921 » Aaron T. Beck, American psychiatrist and academic
• 1921 » Heinz Bennent, German actor († 2011)
• 1921 » John Glenn, American colonel, astronaut, and politician († 2016)
• 1921 » Peter Austin, English brewer, founded Ringwood Brewery († 2014)
• 1921 » Richard Leacock, English-French director and producer († 2011)
• 1922 » Thomas Kuhn, American physicist, historian, and philosopher († 1996)
• 1923 » Jerome H. Lemelson, American engineer and businessman († 1997)
• 1923 » Michael Medwin, English actor († 2020)

• 1899 » Horatio Alger, American novelist and journalist (b. 1832)
• 1916 » Benjamin C. Truman, American journalist and author (b. 1835)
• 1925 » Louis-Nazaire Bégin, Canadian cardinal (b. 1840)
• 1932 » Jean Jules Jusserand, French author and diplomat, French Ambassador to the United States (b. 1855)
• 1937 » Julian Bell, English poet and academic (b. 1908)
• 1938 » Marie of Romania (b. 1875)
• 1944 » Thomas Sturge Moore, English author, poet, and playwright (b. 1870)
• 1947 » Evald Tipner, Estonian footballer and ice hockey player (b. 1906)
• 1948 » Herman Gummerus, Finnish historian, academic, and politician (b. 1877)
• 1949 » Vítězslav Novák, Czech composer and educator (b. 1870)

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. Grietje
12. Jacoba
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 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
• March 8 » Spanish Prime Minister Eduardo Dato Iradier is assassinated while exiting the parliament building in Madrid.
• June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
• July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
• August 14 » Tannu Uriankhai, later Tuvan People's Republic is established as a completely independent country (which is supported by Soviet Russia).
• October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.

The temperature on July 18, 1921 was between 17.6 °C and 26.2 °C and averaged 21.3 °C. There was 4.5 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast.