History of Apple Inc.
The first version of the iPhone became publicly available on June 29, 2007 in selected countries/markets. It was another 12 months before the iPhone 3G became available on July 11, 2008. Apple announced the iPhone 3GS on June 8, 2009, along with plans to release it later in June, July, and August, starting with the U.S., Canada and major European countries on June 19. This 12-month iteration cycle has continued with the iPhone 4 model arriving in similar fashion in 2010, a Verizon model was released in February 2011, and a Sprint model in October 2011, shortly after Jobs' death.
List of Apple Inc. media events
Apple announced the iPhone 5C and iPhone 5S during a media event called "This should brighten everyone's day." at its Cupertino headquarters on September 10, 2013. While the iPhone 5C became available for preorder on September 13, 2013, the iPhone 5S first became available on September 20, 2013. While most of the promotion focused on Touch ID, the 64-bit Apple A7 was also a highlight during the event: