Recursive Functions of Symbolic Expressions and Their Computation (1960) [pdf] (jmc.stanford.edu)

Full title is "Recursive Functions of Symbolic Expressions and Their Computation by Machine, Part I" but it didn't fit.

This is the paper that conceived LISP as we kno(/e)w it, and was published in Communications of the ACM.

According to Algolia, this particular link to John McCarthy's seminal paper on LISP has not appeared on HN previously:

https://hn.algolia.com/?q=jmc.stanford.edu

Looks like this is a recently created website:

http://jmc.stanford.edu/project-jmc-team.html

Of course, the paper has been posted many times:

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...