He showed up first around mid-January 1999 (according to the datestamps on MCiOS and game creation stamps on the Yorkives), having found York (as it then was) via the alt.games.mornington-cresent newsgroup.
Possessed of a good sense of humour back then, he's developed his punning skills while in the Morniverse, mainly for use in limericks, so that nowadays he is much, much verse.