History of Mac OS and Mac OS X

When exploring many Mac-related topics, you inevitably come across references to the different "cat" code names for the versions of Mac OS X. It's convenient to have the timeline listed in one place - the following comes from the Wikipedia entry (referenced below), which goes way beyond the timeline. We include a link to the history of pre-Mac OS X versions.

• Mac OS X v10.0 "Cheetah" - March 24, 2001 (6 months)
• Mac OS X v10.1 "Puma" - September 25, 2001 (11 months)
• Mac OS X v10.2 "Jaguar" - August 24, 2002 (13 months)
• Mac OS X v10.3 "Panther" - October 24, 2003 (18 months)
• Mac OS X v10.4 "Tiger" - April 29, 2005 (30 months)
• Mac OS X v10.5 "Leopard" - October 26, 2007 (22 months)
• Mac OS X v10.6 "Snow Leopard" - August 28, 2009 (22 Months)
• Mac OS X v10.7 "Lion" - July 20, 2011