History pages do not (obviously) refer to searching in old versions of
article. There is certainly a way to retrieve article versions one by
one, and one could (theoretically) do that in batch mode and search in
them locally. And that would be suboptimal wrt both user bandwidth
and wikipedia server load. Is there a way to search in old versions
of article?
For instance, one knows that there was a version of
<http://en.wikipedia.org/wiki/Back_to_the_future> that contained a
reference to <http://en.wikipedia.org/wiki/Mall>, "twin pines" phrase,
"destroyed" word. The date of the version is unknown. How does one
find that version starting from
<http://en.wikipedia.org/w/index.php?title=Back_to_the_Future&action=history>?