- Sep 1 Nalanda University in eastern Indian begins its first academic year, on the site of the world's oldest university, a Buddhist monastic institution that operated 427 to 1197 CE
- Sep 4 Aracheological remains of a Viking fortress from the 900s CE, the Vallø Borgring, is discovered in Denmark
- Sep 4 Monsoon rains begin and cause flooding over a sustained period that kills over 400 people in India & Pakistan
- Sep 5 World Health Organization estimates 1,900 people have died from the Ebola virus out of 3,500 infected in Guinea, Liberia, Nigeria, Senegal, and Sierra Leone
- Sep 7 American brothers Bob and Mike Bryan beat Spanish pair Marcel Granollers & Marc López 6–3, 6–4 to win their Open era record 5th US men's tennis doubles title; extends record for most Grand Slam doubles titles (16)
- Sep 7 Asteroid 2014 RC makes a close approach to Earth (39,900 km; 24,800 mi)
US Open Women's Tennis
Sep 7 US Open Women's Tennis: Serena Williams wins her 3rd straight US title; beats Caroline Wozniacki of Denmark 6-3, 6-3
Event of Interest
Sep 8 Haider al-Abadi becomes the 75th Prime Minister of Iraq
- Sep 8 US Open Men's Tennis: Marin Čilić of Croatia wins his maiden grand slam title; beats Kei Nishikori of Japan 6-3, 6-3, 6-3
Event of Interest
Sep 9 Ali Hosseini Khamenei, Supreme Leader of Iran, undergoes prostate surgery
- Sep 11 South African athlete Oscar Pistorius is found not guilty of murdering his girlfriend Reeva Steenkamp (and is later found guilty of culpable homicide)
- Sep 13 40 people are killed after T. B. Joshua's The Synagogue Church of All Nations collapses in Nigeria
- Sep 13 At least 8 people are killed after the ferry MV Maharlika II sinks off the Philippines coast
Farm Aid Concert
Sep 13 Farm Aid held in Raleigh, north Carolina; performers include Willie Nelson, John Mellencamp, Neil Young, Dave Matthews, Jack White, Gary Clarke Jr., Preservation Hall Jazz Band, Jamey Johnson, Todd Snider, and Carlene Carter [1]
- Sep 14 39th Toronto International Film Festival: "The Imitation Game" directed by Morten Tyldum wins the People's Choice Award
Golf Major
Sep 14 Evian Championship Women's Golf, Evian Resort GC: 19-year-old South Korean Kim Hyo-joo wins by 1 stroke ahead of Australian runner-up Karrie Webb
- Sep 14 The United States defeats Serbia 129-92 to win the 2014 FIBA Basketball World Cup
- Sep 15 Ewa Kopacz becomes Prime Minister of Poland
Event of Interest
Sep 15 President Obama announces the US will send 3,000 troops to help combat spread of the Ebola virus
Partners
Sep 16 Barbra Streisand releases album "Partners" features duets with other artists, when reaches No 1, makes Streisand only recording-artist with top album in six decades
Election of Interest
Sep 17 Frank Bainimarama's Fiji First Party wins the first Fijian elections since his coup in 2006
- Sep 18 8 people (including 2 children) are shot dead in Bell, Florida
Film & TV History
Sep 18 Emma Watson delivers an address to a standing ovation at UN Headquarters in New York City, helping launch the UN Women campaign HeForShe, which calls for men to advocate for gender equality
- Sep 18 Scotland votes to stay a member of the United Kingdom in an independence referendum
Cheek To Cheek
Sep 19 Columbia Records releases "Cheek To Cheek", a duet album of jazz standards by singers Tony Bennett and Lady Gaga; debuts at #1 on Billboard 200, Jazz Albums, and Traditional Jazz Albums charts.
- Sep 26 43 students from Ayotzinapa Teachers College go missing (and presumed murdered) in Iguala on their way to a protest - one of Mexico's worst human rights cases
- Sep 26 World Health Organizations estimates that Ebola death toll has reached 3,091 - with Liberia, Guinea and Sierra Leone hit hardest
- Sep 27 57 people are killed after Mount Ontake erupts in Japan
- Sep 27 Hawthorn Football Club defeats the Sydney Swans in the 2014 AFL Grand Final 137-74
- Sep 27 New Zealand's All Blacks scores 4 tries to beat Argentina, 34-13 in La Plata and claim their 3rd straight Rugby Championship; All Blacks first five eighth Beauden Barrett kicks 6 from 6
- Sep 28 Ryder Cup Golf, Gleneagles Hotel, Scotland: Europe wins 16½-11½ to win Cup for 3rd consecutive time
President Ghani
Sep 29 Ashraf Ghani becomes President of Afghanistan
- Sep 30 A case of Ebola Virus reaches Dallas, Texas
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists