Determine 0.9.2 release date

Python version 0.9.2 is the only release for which I don't have a release date.  <http://python-history.blogspot.com/2009/01/brief-timeline-of-python.html> gives its release as "Autumn, 1991", but that's too vague for my purposes.  If I could just find out what month it was released in, I could set the day-of-month to 1 and finally fill in that hole in the database.