September 27: What Happened on This Day in History
September 27th marks the 270th day of the Gregorian calendar year (or the 271st in case of leap years). There are 95 days remaining until the end of the year.
Discover what happened on September 27th in history, famous birthdays on September 27th, celebrities died on this day, the day of the week and the zodiac sign associated to September 27.
What happened on September 27?
Here's what happened on September 27th in history:
- 2023: Scientists at CERN achieved a significant scientific breakthrough by experimentally proving that antimatter obeys the same gravitational principles as ordinary matter. Through a precise experiment involving dropping antihydrogen gas from a 3-metre vertical shaft, researchers confirmed that antimatter falls downward, challenging previous theoretical uncertainties.
- 2018: On September 27, 2018, India's Supreme Court declared the country's adultery law unconstitutional, stating it was discriminatory against women. This landmark ruling was seen as a significant step towards gender equality in India. source: bbc.com
- 2015: On September 27, 2015, violence erupted in the Central African Republic, leading to numerous casualties and displacements. The conflict, primarily between Christian and Muslim groups, has been ongoing since 2013, exacerbating humanitarian crises. source: un.org
- 2013: On September 27, 2013, President Barack Obama and Iranian President Hassan Rouhani engaged in a historic exchange, marking a significant thaw in US-Iran relations. This communication was part of efforts to address Iran's nuclear program and improve bilateral ties after decades of hostility. source: reuters.com
- 1997: NASA's Mars Pathfinder mission experienced a communication loss on September 27, 1997, after successfully landing on Mars. The mission had provided significant data and images of the Martian surface before the loss occurred. source: mars.nasa.gov
- 1991: On September 27, 1991, an NHL exhibition game between the Boston Bruins and New York Islanders was scheduled in St. Petersburg, Florida. However, the game was canceled due to poor ice conditions, marking the first scheduled NHL exhibition game in St. Petersburg. source: brainyhistory.com
- 1986: On September 27, 1986, the U.S. Senate passed the Tax Reform Act of 1986, a comprehensive overhaul of the federal tax code. The Act aimed to simplify the tax system, broaden the tax base, and eliminate numerous tax shelters and preferences. It reduced the top individual tax rate from 50% to 28%, increased the standard deduction and personal exemptions, and expanded the earned income tax credit, effectively removing approximately six million low-income Americans from the tax rolls. The Act also increased the corporate tax rate from 46% to 50% and eliminated various tax deductions, including those for rental housing, individual retirement accounts, and depreciation. source: congress.gov
- 1984: Canadian singer-songwriter Avril Lavigne was born on September 27, 1984, in Belleville, Ontario. She gained fame in the early 2000s with her pop-punk music style and has since become a prominent figure in the music industry. source: biography.com
- 1982: Lil Wayne, the American rapper, was born on September 27, 1982, in New Orleans, Louisiana. He is known for his influential contributions to hip-hop and has received numerous awards throughout his career. His real name is Dwayne Michael Carter Jr. source: biography.com
- 1967: The TanZam Railway Agreement was signed on September 27, 1967, between Tanzania and Zambia, facilitating the construction of a railway connecting the two countries to improve transportation and trade. source: britannica.com
What famous birthdays are on September 27?
On September 27th there are the following famous birthdays:
![Avril Lavigne]()
Avril Lavigne (1984)Avril Lavigne is a Canadian singer-songwriter known for pioneering a pop-punk sound in the early 2000s with hits like 'Complicated' and 'Sk8er Boi.' She is recognized for her punk-inspired style and rebellious attitude, which set her apart in mainstream pop music. [bio]
![Meat Loaf]()
![Gwyneth Paltrow]()
Gwyneth Paltrow (1972)Gwyneth Paltrow is an American actress, singer, author, and businesswoman, widely recognized for her award-winning performances in both film and television and as the founder of the lifestyle brand Goop. [bio]
![Andy Lau]()
Andy Lau (1961)Andy Lau is a renowned Hong Kong actor, singer, and film producer, widely recognized as one of the most successful and influential figures in the Hong Kong entertainment industry. With a career spanning over four decades, Lau is celebrated for his versatility and prolific achievements in both music and film. [bio]
![Denis Lawson]()
Denis Lawson (1947)Denis Lawson is a Scottish actor and director best known for playing Wedge Antilles in the original Star Wars trilogy. He has also had a distinguished career in British television and stage productions. [bio]
![Freddy Quinn]()
Freddy Quinn (1931)Freddy Quinn is an Austrian singer and actor who rose to fame in the 1950s and 1960s with his successful schlager (German pop) music and film roles. He became especially popular for his seafaring-themed songs and was considered one of the leading stars of German-language entertainment during the postwar period. [bio]
![Shaun Cassidy]()
Shaun Cassidy (1958)Shaun Cassidy is an American singer, actor, writer, and producer who rose to fame in the late 1970s as a teen idol, known for his hit songs and his starring role in the television series 'The Hardy Boys Mysteries.' He later established a successful career as a television producer and writer. [bio]
![Marc Maron]()
Marc Maron (1963)Marc Maron is an American stand-up comedian, podcaster, writer, and actor best known for his influential podcast 'WTF with Marc Maron' and his stand-up specials, as well as his acting roles in TV series such as 'Maron' and 'GLOW.' [bio]
![Greg Morris]()
Greg Morris (1933)Greg Morris was an American television and film actor best known for his role as Barney Collier on the television series 'Mission: Impossible', which aired from 1966 to 1973. He was recognized for his pioneering role as one of the most prominent Black actors on American television during the 1960s and 1970s. [bio]
![Anna Camp]()
Anna Camp (1982)Anna Camp is an American actress and singer best known for her roles in popular television series such as 'True Blood' and the 'Pitch Perfect' film series. Renowned for her comedic timing and musical talent, she has established herself as a versatile performer in both television and film. [bio]
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 27?
On September 27th the following celebrities died:
![Michael Gambon]()
Michael Gambon (2023)Michael Gambon was an acclaimed Irish-born British actor, best known for his distinguished stage, television, and film career. He gained international fame for his portrayal of Professor Albus Dumbledore in the 'Harry Potter' film series, succeeding Richard Harris in the role. [bio]
![Clara Bow]()
![Donald O'Connor]()
Donald O'Connor (2003)Donald O'Connor was an American dancer, singer, and actor best known for his energetic performances in classic Hollywood musicals, notably 'Singin' in the Rain.' [bio]
![Gracie Fields]()
Gracie Fields (1979)Gracie Fields was a renowned British actress, singer, and comedienne, celebrated for her performances in film, theatre, and music hall. Rising from humble beginnings, she became a beloved entertainer, especially famed for her morale-boosting World War II tours and for bridging class barriers with her relatable persona and extraordinary talent. [bio]
![Herbert Lom]()
Herbert Lom (2012)Herbert Lom was a Czech-born British actor best known for his roles in classic films such as 'The Ladykillers' and for playing Chief Inspector Charles Dreyfus in the 'Pink Panther' film series. [bio]
![Tino Rossi]()
Tino Rossi (1983)Tino Rossi was a celebrated French singer and film actor, known for his romantic ballads and his significant contribution to French popular music from the 1930s through the 1950s. Famed for his smooth tenor voice, Rossi became a cultural icon in the Francophone world. [bio]
![Babe Didrikson Zaharias]()
Babe Didrikson Zaharias (1956)Babe Didrikson Zaharias was an extraordinary multi-sport athlete who revolutionized women's athletics in the mid-20th century.
![Hugh Hefner]()
Hugh Hefner (2017)Hugh Hefner was an iconic American entrepreneur who founded Playboy magazine in 1953, revolutionizing media, publishing, and cultural...
![Ramesh Balsekar]()
Ramesh Balsekar (2009)Ramesh Balsekar was a prominent Indian spiritual philosopher who significantly contributed to the understanding of Advaita Vedanta, offering...
![William Safire]()
William Safire (2009)Pulitzer Prize-winning political columnist for The New York Times, renowned for his sharp political commentary and work as a speechwriter...
What day of the year is September 27?
September 27th marks the 270th day of the year in the Gregorian calendar (or the 271st in case of leap years).
There are 95 days remaining until the end of the year.
September 27th is the 27th day of the month of September.
What day of the week is September 27?
On September 27th, 2026 the day of the week is Sunday.
| September | 2026 | |||||
|---|---|---|---|---|---|---|
| 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 27?
The zodiac sign associated with September 27th is Libra according to the Western Zodiac.
More about September 27 zodiac
