- Sep 2 66th Venice Film Festival: "Lebanon" directed by Samuel Maoz wins Golden Lion
Sports History
Sep 3 Pedro Martínez becomes the 10th pitcher in history to win at least 100 games in each league
Canadian Women's Open
Sep 6 Canadian Open Women's Golf, Priddis Greens GC: Suzann Pettersen of Norway wins by 5 strokes from a group of 5 players
- Sep 9 Cyprus enters recession after 0.6% contraction in the first quarter, followed by 0.4% in the second quarter
- Sep 11 Sweden emerges from the recession after witnessing GDP growth of 0.2% in the second quarter
- Sep 11 The Brazilian economy technically leaves the recession when GDP grew 1.9% in the second quarter of 2009 after having fallen in the first quarter of 2009 and last quarter of 2008
- Sep 12 South Africa claims 3rd Tri Nations Rugby Series with 32-29 win over defending champions New Zealand in Hamilton; Steyn bros dominate with the boot; Morné kicks 2 penalties, 2 conversions & dropped goal; François, 3 penalties
- Sep 12 The 9-12 Project organized multiple marches and demonstrations across the USA to protest government spending.
US Open Women's Tennis
Sep 12 US Open Women's Tennis: Belgian Kim Clijsters becomes first unseeded player and wildcard to win the tournament; beats Caroline Wozniacki of Denmark 7-5, 6-3
26th MTV Video Music Awards
Sep 13 26th MTV Video Music Awards: Beyoncé, Taylor Swift & T.I. f/ Rihanna win
Darwin Centre Opens
Sep 14 David Attenborough and Prince William officially open the Darwin Centre at the National History Museum London, in what is the Museum's most significant expansion since 1881
US Men's Tennis Open
Sep 14 US Open Men's Tennis: Juan Martín del Potro of Argentina wins his first Grand Slam title; beats defending champion Roger Federer 3-6, 7-6, 4-6, 7-6, 6-2
Community
Sep 17 TV sitcom "Community" created by Dan Harmon, starring an ensemble cast including Joel McHale, Gillian Jacobs and Alison Brie debuts in the US
- Sep 18 The 72 year run of the soap opera The Guiding Light ends as its final episode is broadcast.
Toronto Film Festival
Sep 19 34th Toronto International Film Festival: "Precious" directed by Lee Daniels wins the People's Choice Award
61st Emmy Awards
Sep 20 61st Emmy Awards: Mad Men, 30 Rock, Bryan Cranston & Glenn Close win
- Sep 21 Macedonia officially enters the recession after experiencing a drop in GDP of 0.9% in the first quarter, followed by 1.4% in the second quarter
NCIS LA Premieres
Sep 22 Crime drama "NCIS LA" starring Chris O'Donnell, LL Cool J, and Daniela Ruah premieres on CBS
Modern Family Premieres
Sep 23 TV comedy "Modern Family" premieres on ABC, starring Ed O'Neill and Sofia Vergara
- Sep 26 Typhoon Ketsana (2009) hit the Philippines, China, Vietnam, Cambodia, Laos and Thailand, causing 700 fatalities.
Merkel Wins Federal Election
Sep 27 German Federal elections return Angela Merkel for second term as Chancellor at head of center-right coalition government
- Sep 28 The military junta leading Guinea, headed by Captain Moussa Dadis Camara, sexually assaulted, killed and wounded protesters during a protest rally in a stadium called Stade du 28 Septembre.
- Sep 29 An 8.0 magnitude earthquake near the Samoan Islands causes a tsunami
- Sep 29 MESSENGER spacecraft performs a third and final Mercury flyby
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