What is Pennsic? Pennsic, to me, is a dream take form…
First, you have to understand what the SCA is - a worldwide volunteer not-for-profit medieval/Renaissance re-enactment society. Buncha really smart, really imaginative folks get together in local bunches a few times a year at an event to socialize, dance, fight, costume, eat, and engage in period arts, all ostensibly within a pre-1600 mindset. OK, we’re a buncha weirdos, but we know how to have fun.
You are encouraged to create a period persona and act accordingly, but it’s not required. Similarly, people are encouraged to become members of the Society, but it’s not required (unless you wish to fight or hold office). And, yes, there are a bunch of people who hit each other large sticks made of rattan while dressed in armor, but me, I just go for the schmoozing. 
This year is the 30th Pennsic War, originally a small event to decide the border between the newly-formed East and Middle Kingdoms (turns out the loser - the East - got Pittsburgh
). It turned into an annual “friendship war,” and it remains the largest event in the Society. 10,000+ people show up from around the world for 16 days of camping, revelry, fighting, shopping, and everything a small, local one-day event offers, but magnified by, well, 10,000.
Pennsic is not a “Ren Faire” typical of many parts of the country - they do it for profit and for the public, we do it not for profit and for just us (although anyone is welcome to attend, even if you’re not a member, but we only advertise to members, and anyone who attends has to pay the site fee, which is usually just a few bucks, and is expected to participate, particularly by wearing period garb). They have paid actors to re-create a specific point in time, and sometimes a specific event in history; this is a hobby for us, and we tend to have quite a mish-mosh of periods and locales. SCAdians and Faire folk rarely intermingle, and I’ve even found animosity from one group to another, but the reality is we’re both doing the same thing, just coming at it from different directions and viewpoints.
This year will mark my 12th (I think) consecutive year at War, and the 11th year of my running the Clan Blue Feather encampment (Clan Blue Feather is the queer social/historical research group within the SCA). I’m also once again running the annual Blue Feather Ball, quickly becoming one of the most fun and best-attended parties of its kind at War. I consider it my annual battery recharge, and despite having moved to the west coast, I intend to return every year for this time-honored tradition of mine.
Everybody’s in it for different reasons - I go for the people, for I find them to be, on the whole, an intelligent, imaginative, fun bunch. (Hey, sounds like the reasons I post here!
)
Speaking of, one post to go… 
Esprix