*** Lisp https://en.wikipedia.org/wiki/Lisp_(programming_language) Scheme https://en.wikipedia.org/wiki/Scheme_(programming_language) Racket https://en.wikipedia.org/wiki/Racket_(programming_language) https://racket-lang.org/ *** John McCarthy https://en.wikipedia.org/wiki/John_McCarthy_(computer_scientist) http://www-formal.stanford.edu/jmc/ McCarthy, J. 1960. Recursive functions of symbolic expressions and their computation by machine. Communications of the ACM 3(4):184-195. http://www-formal.stanford.edu/jmc/recursive.html McCarthy, J. 1963a A basis for a mathematical theory of computation. In Computer Programming and formal systems. North-Holland. http://www-formal.stanford.edu/jmc/basis.html