From Lexicanum

Year	Event	Source
005.M42	To Serve the Emperor: A Commissar's Life, written by Commissar Ciaphas Cain is published. The writing of his memoirs spurred him to gather and write a full archive of his glorious career. However the archive never sees the light of day, being immediately put under Inquisitorial seal by order of Inquisitor Amberley Vail. The archive simply contains far too much sensitive and restricted information. She organizes the archive, naming it the Cain Archive, and publishes it 'for Inquisitors' only. A high number of Inquisitors read it. She is even persuaded to expand it considerably, making it somewhat of a bestseller among the Inquisition.	For The Emperor by Sandy Mitchell page 8
006.M42	The fall of Medusa V occurs. The world was mostly evacuated by the Imperum whilst a warp storm engulfed it.
037.M42	The Return of the Liberator: Ciaphas Cain and the Second Siege of Perlia by Orten Bassit is published. It is later used by Amberley Vail as an extract within the Cain Archive.	Cain's Last Stand by Sandy Mitchell Page 95
087.M42	Just Visitin': The Life of a Naval Hero by Nelson Lawford is published. It is later used by Amberley Vail as an extract within the Cain Archive.	Cain's Last Stand by Sandy Mitchell page 255
095.M42	The Abominable Chitin: a Concise History of the Tyrannic Wars by Arten Burrar is published. It is later used by Amberley Vail as an extract within the Cain Archive.	Duty Calls by Sandy Mitchell page 77
101.M42	Like a Phoenix on the Wing: The Early Campaigns and Glorious Victories of the Valhallan 597th, written by Lady General Jenit Sulla (retired) is published. Readers with a refined appreciation of the complex and subtle nuances of which the Gothic Language is capable are discouraged from ever looking at it. Amberley Vail uses extracts from it multiple times within the Cain Archive merely for the sake of completeness in the vain hope that it might provide useful background information about the wider tactical view of whatever campaign Cain was participating in at the time, and never bothered to write about (since it usually didn't concern him directly).	For The Emperor by Sandy Mitchell
127.M42	In Blackest Night: The Millennial Wars Appraised by Ayjaepi Clothier is published. It is later used by Amberley Vail as an extract within the Cain Archive.	Cain's Last Stand by Sandy Mitchell page 127

M41	Timeline