Well, 1930's functional programming. Those techniques developed into various type theories pretty quickly (at the time for foundational reasons, but also for comprehension/management/expressiveness reasons).
Or if you have a more strict reading, Lisp is implementation-driven FP in the 70s compared to theory-driven FP from the time.
I think it kind of does. FP is a moving target---more of a cultural identity than a technical definition. As it becomes more mathematically focused it will become less applicable to (some) Lisps. If this progression continues and dependently typed languages become increasingly practical we may someday call them FP-without-quotes and even displace things like Haskell and OCaml.
