Mario gave you the quick answer. It is a Medieval History Living History re-enactment society that is Global in scope. How much actual educational/vs recreational content is very much due to the local group. SCA "period" is tehcnically 0-1650 AD, but we have both slightly earlier and much later personas. Very much later than 1750 doesn't fly, though. Most of the Late Personas are Italian/French Rennasciannce (hell, I can't spell that!) or Cavaliers. What else do you want to know?