Development began in the mid-70s and continues actively as of 2009.
original research? Emacs text editors are most popular
1[unreliable source?] with technically proficient computer users and
computer programmers. The most popular version of Emacs is
GNU Emacs, a part of the
GNU project, which is commonly referred to simply as "Emacs".
References
1.
http://en.wikipedia.org/wiki/GNU_Emacs Retrieved on 2009-04-08.