Past events are viewable, there might be an easier way, but for now this is what I can offer
1. try to remember the last time you viewed the event page here on UER, go into your browser history for that day, and see if a link is there
the basic link to an event is
http://www.uer.ca/...nt.asp?eventid=723 by simply changing the 3 digit number at the end you can dig up all sorts of past events
the other option is if your browser has auto complete for the URL spot, just start typing www.uer.ca/events and i bet your event might pop up in the autocomplete