Bloodborne Timeline (updated for The Old Hunters)

The following content was originally created in this thread in /r/bloodborne. All credit for the content of this post goes to new_hunter, with only minor changes being made to reflect the difference in format. 

This post presents a timeline of the major events in Yharnam's history.

Lore of the Old Hunters: What we've learned; What's changed; What we can believe

This post was originally written by dmcredgrave on /r/bloodborne in this post. The only changes made were to account for the difference in format.