A Brief History of ActionScript
ActionScript started as a set of commands for the flash player called 'actions'.
With the release of flash player version 5 (in 2000)
the term ActionScript was used to describe
the programming language
that resulted from the
addition of more 'actions'.
In 2003 -2004 ActionScript 2.0 was released alongside flash player version 7.
The code before 2.0 became known as ActionScript 1.0.
ActionScript 2.0 added some support for classes and variable type declaration.
Before 2005 ActionScript and the flash player were updated by Macromedia.
In 2005 Adobe acquired Macromedia. With 2006 came ActionScript 3.0.
Version 3.0 is a more complete, object oriented language.
It is based on ECMAScript edition 4,
has an event model based on the Document Object Model level 3 specifications,
and has support for regular expressions and E4X xml usage.