Thread:EvilDragonLord/@comment-5503727-20160917153100/@comment-5494183-20160918004832

Actually I didn't said anything about dates; you just told me about an inconsistency in the timeline, so that's why I said "Go with what is said in the manga".

Anyway, I also checked up Diane side story and there is mentioned that the battle against the Holy Knights was 16 years ago, so I guess that's why is in the Timeline as such. Though it was mentioned in those texts added by the magazine/editor, so I guess if 15 years if mentioned on a dialogue written by the author, that is more accurate.