Red is both an imperative and functional programming language introduced in 2011 by Nenad Rakocevic. Its syntax and general usage directly overlaps with that of the interpreted Rebol language (which was introduced in 1997). Yet the implementation choices of Red were geared specifically to overcoming limitations of Rebol, creating what Rakocevic calls a “full stack programming language”. Red can be used for extremely high-level programming (DSLs and GUIs) as well as low-level programming (operating systems and device drivers).

Source: Red (programming language) – Wikipedia, the free encyclopedia