A Twenty20 International (T20I) is a form of cricket which is played over 20 overs per side between two national cricket teams. The game is played under the rules of Twenty20 cricket. The first Twenty20 International took place on 17 February 2005. Australia defeated New Zealand by 44 runs at Eden Park in Auckland. The International Cricket Council gave rankings for the shortest format of the game on October 24, 2011 with England at top.