>>33
It's a family of languages now. Lisp 1.5 goes earlier than 1967, and is the language from where MacLisp derived, from there came Lisp Machine Lisp and other languages, which eventually led to the standardization of Common Lisp. CL retains many of the features Lisp 1.5 had, so I think you could clearly say that it's one of the oldest languages, even if CL is not that old itself (CLTL1, CLTL2(based on ANSI CL, before completion of the standardization process) then Ansi CL(based on CLTL1)). Fortran is the oldest language, but of course people had formal notations for many things which resembled programming languages even before then. Do you want to call it second oldest real/implemented language?