CMU Common Lisp
Computer program
CMUCL is a free Common Lisp implementation, originally developed at Carnegie Mellon University.
CMUCL runs on most Unix-like platforms, including Linux and BSD; there is an experimental Windows port as well. Steel Bank Common Lisp is derived from... Wikipedia
Programming languages: C, Lisp, and Common Lisp
Initial release date: 1980
License: Public domain
Operating system: Several POSIX-compliant OSs