User blog comment:Master Sima Yi/Assassinews 03-12-'14 — New Assassin's Creed in Victorian London leaked/@comment-24760042-20141204185324/@comment-183.87.173.28-20141206011705

That can't really be answered in the confines of this post. But this post I made at the Ubisoft forums  should give you a broad idea(it's fairly detailed and minute) about it.

http://forums.ubi.com/showthread.php/954025-ACU-History-A-list-of-demonstrable-lies-and-inaccuracies-SPOILERS