Earliest reference I can find atm:
Found a June 22, 2001 reference
http://web.archive.org/web/200106220...ehawk/Prin.htm
Not listed on the websites October 2000 snapshot:
http://web.archive.org/web/200010100...chemy/Prin.htm
October 7, 2001 wayback machine snapshot
http://web.archive.org/web/200112042...r.org/alchemy/