As far as
we knew, Viaweb was the first web-based application,
but I worry that there were others we didn't know
about. So please tell me if you know of any earlier.
It depends what counts as an application, of course. What I mean
by an application is a web site that is not merely an interface
to a database, but something like a desktop application, where
the user actually builds things on the server.
That is, something with the
equivalent of file->new.
Robert Morris and I demoed the first version of Viaweb to investors
in August 1995. At the time,
as far as we knew, it was a new
kind of software. But I don't want to be saying something that isn't
true, so if anyone knows of any web-based applications before that,
please drop me a line.