Is there a deadline?
The second week before a session is the latest we’ll approve characters, although we wont guarantee that characters submitted so close to the session will be involved in events, due to our lack of time in which to weave the late-submitted characters backstory into any other backstory or events we may have in mind at the time. To improve the chance that your character will be involved in in-game events through the backstory you wrote (other than, say, actively taking part in things, which we encourage everyone to do anyway), we recommend that you submit your character sheet before 1 month before a session.
Ok, so if we want our backstory accounted for characters should be in August at the latest.
Check.