recentf-mode

recentf-mode is an interactive autoloaded compiled Lisp function in `recentf.el'.


(recentf-mode &optional ARG)

Toggle "Open Recent" menu (Recentf mode).
With a prefix argument ARG, enable Recentf mode if ARG is
positive, and disable it otherwise. If called from Lisp, enable
Recentf mode if ARG is omitted or nil.

When Recentf mode is enabled, a "Open Recent" submenu is
displayed in the "File" menu, containing a list of files that
were operated on recently.