History of Flex

2002 Macromedia coins the term Rich Internet Application (RIA) and after a few precursors begins development on a project codenamed "Royale".
2003 Royale demoed at Macromedia MAX.
2004 Flex 1.0 released in March.
Flex 1.5 released in November.
2005 Flash Player introduces new virtual machine that improves performance by an order of magnitude.
Development begins on Flex 2, a rewrite intended to leverage new Flash Player capabilities.
Flex 2 Alpha released at MAX in October.
Macromedia Labs introduced.
Adobe acquires Macromedia in December.
2006 Flex 2 released in June.
2007 Flex 2.0.1 released in January.
Adobe announces Flex moving to open source in April.
Flex 3 Beta released in June.
Public bug system goes live.
2008 Flex 3 released in February and open source site goes live.