So is it really true what is says in the help file, that you need to have some number set to the "Happy", not the "Happy (all cities)", field when you check the "Continental Mood Effects" box, to add happiness to all cities on the continent? The JS Bach's Cathedral is ambiguous as it has the value 2 on both "Happy" and "Happy (all cities)".
I don't know if it this is of any help, but about the "Build Often" boxes, I think that England and the Celts have often gotten a lot of culture in the games I've played; and they both have the "Build Often: Culture" box checked.
Huh, I could've sworn I once had an artillery in an army that could be used. But I know that at least the "Hidden Nationality" and "Amphibious" abilities disappear in armies.