That's not to say their isn't quite a bit of "crossover" here. =-)
Originally Posted by Sausage Fingers
You gotta get your geek shit straight, man.
SCA: Society for Creative Anachronism is a group that focuses mostly on dressing in medieval garb and holding events (where combat is only a small part of the whole event).
LARPers: Live Action Role-Players are the ones out there beating each other into submission with foam weapons.
D&D: Dungeons & Dragons is a paper and pencil game that started it all back in the 70's.
Don't make me draw a venn diagram for you...