User blog comment:Stormwell/Timeline of Events/@comment-1500935-20140119232626

For details, if I'm right I think Drapers Ward started loosing its customers like six months before the game. Also, Hatters say at the beginning of the mission that they've been in the district for 8 years, but that doesn't seem right somehow.

I don't have them all memorized but you should check the announcements page. Several are giving months for things like the Regency terms of Burrows and others.