2012 in Maximum Fighting Championship
List of events

Event
Date
Venue
City
MFC 32 - Bitter Rivals
January 27, 2012
Mayfield Inn Trade and Conference Centre
Edmonton, Alberta, Canada
MFC 33 - Collision Course
May 4, 2012
Mayfield Inn Trade and Conference Centre
Edmonton, Alberta, Canada
MFC 34 - Total Recall
August 10, 2012
Mayfield Inn Trade and Conference Centre
Edmonton, Alberta, Canada
MFC 35 - Explosive Encounter
October 26, 2012
Mayfield Inn Trade and Conference Centre
Edmonton, Alberta, Canada

Question: What events were held at the Mayfield Inn Trade and Conference Centre before June 1, 2012?
Answer: MFC 32 - Bitter Rivals and MFC 33 - Collision Course were held before June 1, 2012 at the Mayfield Inn Trade and Conference Centre in Edmonton, Alberta.