Looking back at the CVS tree, the oldest code checkin I can find was on
September 13th 1999, when it was just Richard and me working in an attic
office above the atrium of St John's Innovation Centre (in Cambridge, UK):
http://cvs.xapian.org/xapian/xapian-core/common/database.h?rev=1.1&content-type=text/vnd.viewcvs-markup
This was before BrightStation released the code under the GPL. At that
point the project was called "Object Muscat", and was being written as
a replacement for the aging Muscat 3.6 system (mostly written in BCPL!)
The CVS comment suggests that we'd been working on the code for a little
before this, so the date probably isn't quite correct. I doubt it's out
by more than a few weeks though.
Searching Google groups finds a freshmeat release announcement for
"OpenMuscat 0.1.0 - High performance probabalistic search engine
library." on 2000/03/10 - this was probably the first Open Source
release:
http://groups.google.com/groups?selm=8abeu4%24i68%241%40linux339.dn.net
That's the date of the freshmeat announcement though - the release was
probably a little before that.
Cheers,
Olly