Right, I'm going to take a wild stab in the dark and say you aren't a local. Put more simply, we're in a recreation of a time period that is similar to the pasts that many people here are familiar with, but I've seen exceptions.
I don't know of a Vader. I'm not overly familiar with the 'scientists' in charge here, but I don't think that's the name of any of them. It does sound like a term I've heard before, though. German maybe? That could be coincidence, though.