Rebol

http://www.rebol.com or .org

See also:

• https://en.m.wikibooks.org/wiki/Rebol_Programming/Programming_in_Rebol
• https://github.com/hostilefork/ren-c Ren-C is a fork of Rebol which is actually being actively maintained as FOSS
• https://www.youtube.com/playlist?list=PLv-UC_v9RqgHAZBa4C1geV7QiNoTQGX-S Some active development.
• http://www.codeconscious.com/rebol/ Seems somewhat up to date. Note that 'something must be replaced with [something] in all cases.
• http://hostilefork.com/media/shared/replpad-js/ A rebol repl in webasm. This is the ren-c version.