On September 18, 1997, the New Zealand-Zimbabwe Test became the first to feature three pairs of brothers in one team. Zimbabwe fielded Andy and Grant Flower, Gavin and John Rennie, Bryan and Paul Strang on that day. Furthermore, Guy Whittall played, and his cousin Andy was the 12th man.

Mark Richard Shuttleworth (born September 18, 1973) is a South African-British entrepreneur and the founder and CEO of Canonical, the company that created the Linux-based Ubuntu operating system.

Lance Edward Armstrong (born September 18, 1971) is a former professional road cyclist from the United States. Known as a sports icon for winning the Tour de France seven times in a row from 1999 to 2005, he was later stripped of all his titles after an investigation revealed that he was a key figure in the Lance Armstrong doping case.

James Marshall "Jimi" Hendrix was an American guitarist, singer, and songwriter who lived from November 27, 1942 to September 18, 1970. Despite the fact that his mainstream career lasted only four years, he is widely regarded as one of the most influential electric guitarists in popular music history, as well as one of the most celebrated musicians of the twentieth century. According to the Rock and Roll Hall of Fame, he is "arguably the greatest instrumentalist in the history of rock music."

Four Jaish-e-Mohammed terrorists from Pakistan carried out the 2016 Uri attack on an Indian Army brigade headquarters near Uri in the Indian Union Territory of Jammu and Kashmir on September 18. The attack killed 19 Indian soldiers and injured another 19-30.

Tiffany & Co.  is an American luxury jewellery and specialty retailer based in New York City. Jewelry, sterling silver, china, crystal, stationery, fragrances, water bottles, watches, personal accessories, and leather goods are all available. Tiffany & Co. is well-known for its high-end products, particularly its diamond and sterling silver jewellery. These items are available at Tiffany stores, as well as through direct mail and corporate merchandising. Charles Lewis Tiffany, a jeweller, founded Tiffany & Co. in 1837.

The reconstruction of London's Royal Opera House began in December 1808, and the second Theatre Royal, Covent Garden (designed by Robert Smirke) opened on September 18, 1809, with a performance of Macbeth followed by a musical entertainment called The Quaker.

The Internet Corporation for Assigned Names and Numbers (ICANN) is a nonprofit organisation in the United States that coordinates the maintenance and procedures of several databases related to the Internet's namespaces and numerical spaces, ensuring the network's stable and secure operation. According to the Internet Assigned Numbers Authority (IANA) function contract, ICANN is responsible for the actual technical maintenance of the Central Internet Address pools and DNS root zone registries.

The New York Times Company is an American media corporation that owns and operates The New York Times newspaper. Its headquarters are located in Manhattan, New York. Henry Jarvis Raymond and George Jones founded the company in New York City. On September 18, 1851, the first edition of The New York Times stated, "We publish today the first issue of the New-York Daily Times, and we intend to issue it every morning (except Sundays) for an indefinite number of years to come."

The colonial period began on September 18, 1502 when Christopher Columbus arrived on the eastern coast of Costa Rica on his fourth voyage.Columbus continued his explorations to the south, along the coasts of today's Nicaragua, Costa Rica, and Panama. Whenever possible, Columbus and his crew traded for food and gold. They came across several native cultures and saw stone structures as well as maize being grown on terraces.