Just to expand upon what Kriswrite has said, there are frequently
questions on Google Answers where someone asks for "everything": for
example, every company that sells a particular type of product.
Personally, I am always reluctant to attempt to answer such a
question, because if I miss one thing, then I have not provided
"everything".
With respect to "all publications", it is easy to demonstrate that
this is literally impossible. There is no database of every single
publication, if for no other reasons than there are simply too many,
and there are a good number that are very local or very obscure.
Take, for example, a hypothetical pamphlet with an initial circulation
of 20 in a small town in South Carolina in 1778. Perhaps there are no
existing copies; or perhaps there are two existing copies that
everyone today has forgotten about. This may be an extreme example;
but the point is that every book, pamphlet, newspaper, and other form
of publication, especially from 200 years ago, may not be recorded, or
in any event not recorded in one place. This is especially true, as
Kriswrite noted, because there are various places where such
publications would have occurred.
The best we can do is find sources for most, or at least many,
publications from a particular year. For famous historical figures,
we can presumably find nearly all. |