I’ve only programmed Lisp or rather AutoLISP for 19 years and Lisp has been around for 50 years now and still going strong.
In October 1958, John McCarthy published one in a series of reports about his then ongoing effort for designing a new programming language that would be especially suited for achieving artificial intelligence. That report was the first one to use the name LISP for this new programming language.
Some other LISP related links.
Did you know that Lisp was initially designed for writing artificial intelligence programs?
Via Lambda the Ultimate.