Oh I thought you knew. I've been discussing this with the assumption that everyone knew that ostrog was a renaissance building. It works to your advantage, otherwise your field gun and arsenal uniques would arrive on the same tech.I would keep it.
I never really understood your decision to give licornes

range, I thought you were hoping to play up the 'horse artillery' thing. I figured you were going to give them +1

move. combined with half move in enemy territory, that would give them a move and fire ability, but only on open terrain. I don't think you should necessarily reduce the damage though. Keep on truckin!
Yeah, I'm not swedish, so I don't really know where to start. Stave churches are primarily Norwegian as well. If anything, bastu are more unique than stave churchs, because it seems the other nordic countries
make fun of swedes for doing 'dry' heat sessions, and swedes wear bathing suits/towels instead of just being naked. Nordic cultures all kinda borrow a little too much from each other for there to be as many clear lines as I'd like.
EDIT: Then there's Russians, who do humid saunas and are naked EXCEPT they wear special felt toques. Because it's so hot in there you have to wear a hat. Man you crazy, Russia