> The very first versions of Lisp were less functional than Common Lisp: imperative, mutable data, mostly only dynamic scoping for variables, no lexical scope,

> The very first versions of Lisp were less functional than Common Lisp: imperative, mutable data, mostly only dynamic scoping for variables, no lexical scope, first class data type of functions unclear, ... Hmm, perhaps I’m misremembering — I know very little about the history of Lisp. I was thinking specifically about the very beginning of the language, where it could be used to define ‘eval’ and nothing much else.