I've known for a bit that if I type timeline into the command bar (proper name?) that the drop down list will give you the timelines, although I've just noticed that the commandbar dropdown is incomplete compared to the library list.
Command Bar:

Library

Notice that the command bar drop down does not list the Old testament books, the English bible versions nor the intertestamental period.
Proposed Solution:
Either turn off timeline in the commandbar (please no) or make sure that it shows all of what's available.
Thanks.