Today is — as per the FAQ on the Ultima Dragons website — the anniversary of the date that the UDIC was founded:

The Ultima Dragons were originally created on February 27, 1992 on Prodigy. They were disbanded in early 1994, but were reestablished on the Internet later that year as the Ultima Dragons Internet Chapter. Since the Prodigy Ultima Dragons club no longer exists, Ultima Dragons can be used to refer to the UDIC.

Some of you reading this may well have been members since the very beginning; congratulations if so!