September 21: What Happened on This Day in History
September 21st marks the 264th day of the Gregorian calendar year (or the 265th in case of leap years). There are 101 days remaining until the end of the year.
Discover what happened on September 21st in history, famous birthdays on September 21st, celebrities died on this day, the day of the week and the zodiac sign associated to September 21.
What happened on September 21?
Here's what happened on September 21st in history:
- 2023: In the aftermath of the 2023 Azerbaijani offensive in Nagorno-Karabakh, delegates from Azerbaijan and Artsakh convened in the Azeri city of Yevlakh for diplomatic talks. After two hours of discussions, no formal agreement was reached, highlighting the ongoing tensions in the region.
- 2018: The Libyan Civil War escalated with intense fighting in Tripoli, resulting in 444 deaths and 16 people missing. The conflict, which began on August 26, 2018, underscores the ongoing instability in Libya.
- 2015: Russia launched a significant military operation in Syria, attacking the al-Shaar neighborhood in eastern Aleppo with surface-to-surface rockets. The attack on a busy public market killed more than 30 civilians. U.S. officials also reported Russia's first drone surveillance missions over Syria.
- 2012: Australia temporarily shut down its High Commission in Islamabad due to fears of potential violent protests against Western diplomatic missions, reflecting heightened regional tensions.
- 1997: Mike Piazza became the second player to hit a home run out of Dodger Stadium, a remarkable athletic achievement highlighting his exceptional batting prowess.
- 1992: Mexico officially re-established diplomatic relations with Vatican City, ending a diplomatic break that had lasted over 130 years. This significant diplomatic reconciliation marked a major milestone in Mexico's religious and political history.
- 1989: Hurricane Hugo made a catastrophic landfall in South Carolina, causing widespread destruction and approximately US$7 billion in damage. The hurricane was one of the most significant and destructive storms of the late 1980s, leaving a lasting impact on the coastal regions.
- 1984: On September 21, 1984, NASA successfully launched the Galaxy-C communications satellite, contributing to the expansion of satellite communication infrastructure and technological capabilities in space exploration.
- 1982: The Space Transportation System (STS-5) vehicle was moved to the launch pad, preparing for an upcoming space mission.
- 1976: On September 21, 1976, Paul McCartney's band Wings performed a concert in Zagreb, Yugoslavia, as part of their international tour, representing the cultural exchange during the Cold War era.
What famous birthdays are on September 21?
On September 21st there are the following famous birthdays:
![Jason Derulo]()
Jason Derulo (1989)Jason Derulo is a popular American pop and R&B singer known for hit songs like 'Whatcha Say', 'Talk Dirty', and 'In My Head', who has...
![Kareena Kapoor]()
Kareena Kapoor (1980)Kareena Kapoor is a leading Bollywood actress known for her versatile roles and significant contributions to Indian cinema, with a career...
![Larry Hagman]()
![Stephen King]()
Stephen King (1947)Stephen King is a prolific American horror novelist and screenwriter who has published over 40 novels, with 26 adapted into films.
![Ethan Coen]()
Ethan Coen (1957)Renowned American filmmaker, one half of the Oscar-winning Coen Brothers, known for groundbreaking films like 'Fargo' and 'No Country for...
![Bill Murray]()
Bill Murray (1950)Bill Murray is an iconic American comedian and actor known for his deadpan humor and memorable roles in classic comedy films like...
![Luke Wilson]()
Luke Wilson (1971)Luke Wilson is an American actor known for his comedic and dramatic roles in popular films like 'Legally Blonde', 'Old School', and 'The...
![Ricki Lake]()
Ricki Lake (1968)Ricki Lake is an American actress and talk show host known for her breakthrough role in John Waters' cult classic 'Hairspray' and her...
![François Cluzet]()
François Cluzet (1955)Renowned French actor known for his compelling performances in films like 'Tell No One' and 'Intouchables'.
![Noor Jehan]()
Noor Jehan (1926)Legendary Pakistani actress and singer who was a prominent cultural icon in the mid-20th century, known for her powerful voice and...
How to check someone's birthday?
If you’re looking for a person's birth date, have a look at our Birthday Search Guide
Who died on September 21?
On September 21st the following celebrities died:
![Walter Brennan]()
Walter Brennan (1974)Walter brennan was an american actor known for his distinctive voice and performances in over 200 films, winning three academy awards for...
![Jacqueline Susann]()
Jacqueline Susann (1974)Jacqueline Susann was a pioneering American novelist who revolutionized popular fiction in the 1960s.
![Alice Ghostley]()
Alice Ghostley (2007)American actress and comedian known for her roles in television shows like 'Bewitched' and 'Designing Women'.
![Harry Carey]()
![Henry Koster]()
Henry Koster (1988)Renowned German-American film director, producer, and screenwriter who made significant contributions to Hollywood during the mid-20th...
![Nigel Patrick]()
Nigel Patrick (1981)British actor and director known for his work in film and television during the mid-20th century, recognized with prestigious awards.
![Osgood Perkins]()
- Florence Griffith Joyner (1998)
Legendary Olympic sprinter who set world records in the 100- and 200-meter races during the 1988 Seoul Olympic Games.
- Arthur Ashkin (2020)
Arthur Ashkin was a Nobel Prize-winning American physicist who revolutionized scientific research by inventing optical tweezers.
- Arthur Schopenhauer (1860)
German writer and philosopher, he is well-known for his poetic prose and pessimistic views.
What day of the year is September 21?
September 21st marks the 264th day of the year in the Gregorian calendar (or the 265th in case of leap years).
There are 101 days remaining until the end of the year.
September 21st is the 21st day of the month of September.
What day of the week is September 21?
On September 21st, 2025 the day of the week is Sunday.
| September | 2025 | |||||
|---|---|---|---|---|---|---|
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 29 | 30 | |||||
What zodiac sign is associated with the day September 21?
The zodiac sign associated with September 21st is Virgo according to the Western Zodiac.
More about September 21 zodiac
