They are not.
Huh. That's a surprise. That's a change from what I can remember. I did get a mission telling me to build 15 triremes after I had already passed them by.
Some times the base culture does not show up on the turn you capture the city but it is there on the next turn. I think it is a turn caching issue. Same as when you are building a tribe and remove it from the list it does not appear as available to build until the next turn. Both are a consequence of reducing the turn times.
I recently updated from v29 or so to v33 and I have a little problem. Well, not really a problem, just a tiny thing that's bothering me a bit and someone here might be able to help me with that.
Although this mod is really amazing, I always changed some things in the XML files to remove all technologies after the modern (and now transhuman) era, because there weren't any buildings or units for most of those techs. I also added, removed and changed some units and so on.
Well, now I arrived in the late modern age again in one of my games and I found out that I can only build the Wireless Networks building in the same city where I built the Commercial Satellites. That means I need the Space Agency or Commercial Spaceport in every city, which doesn't seem very logical to me. So I wanted to change that requirement so the Wireless Networks only need the Communication Tower, but I can't find it in the CIV4BuildingInfos.xml. Now how do I find it and change the requirements for the building?
tl;dr:
How do I change buildings/units that can't be found (by me) in the xml files?
<BuildingClassNeededs>
<BuildingClassNeeded>
<BuildingClassType>BUILDINGCLASS_COMMERCIAL_SATELLITES</BuildingClassType>
<bNeededInCity>1</bNeededInCity>
</BuildingClassNeeded>
</BuildingClassNeededs>
(another weird thing: getting XP against animals to fight better against humans).
Why is that weird? Throughout human history, experienced hunters have often made better fighters, all else being equal, than their companions who don't have experience hunting.
Being practiced at skills like tracking, shooting, chasing, and stealth provides a benefit in a fight with another being, be it human or animal.