Common Lisp

Yet another dialect of Lisp, Common Lisp is an improvement over its successor, Maclisp. Common Lisp’s objective was to unify and standardize different Maclisp dialects into a general-purpose programming language that combined procedural, functional, and object-oriented paradigms. 

Lisp (historically LISP) is a family of programming languages with a long history and a distinctive, fully parenthesized prefix notation. Originally specified in 1958, Lisp is the second-oldest high-level programming language in widespread use today.