Light research on a possible disconnect between transactional dates (effectual dates or when it shows up for roll call) and historical dates (when it really happened). Sent an email to Eric with some questions. Listed the issue on the known issues page. This is a running list of things that we know that we need to watch out for. At some point, we'll have to fix all of those things, but at least we are recording what we know and are learning. That's part of the game.