If you were curious, on this day in computing history:
There. Now you've also learned something. You're welcome.
March 1, 1960
John McCarthy's LISP Programmer's Manual Released
The first LISP Programmer's Manual is released. Considered the mother tongue of Artificial Intelligence (AI), LISP is older than most other high-level languages still in use today. Its inventor, John McCarthy, created the recursive and symbolic language.