SCA is the Society for Creative Anachronism
§1 - Scheduling
There shall be three official Crown Tournaments and three official Coronation Festivals per year in the Kingdom. They shall be held on the weekends closest to the following:
January 6 Twelfth Night Coronation
No Coronet tournament or Investiture may be scheduled in any Principality of the West for the same date as a Crown Tournament or Coronation.