Just a little question of a newbie who likes the One-City-Challenge:
e.g. In the original Civ IV you need to build a certain number of universities before you're able to build the Oxford University. This has been changed for the OCC, you just need one university (for you can't build another one anyway). You implemented such buildings as well (like the district bank or the military academy), but they still require more than one of their related building before you're able to construct those "better buildings".
Well, did you do this knowingly (to make the OCC even more challenging perhaps) or is it just a kind of "bug" in your mod?
And just while writing the text above, another question started running through my head: Is it really neccesary to destroy the improvement on a piece of terrain in order to terraform it? If it is a square with a farm or a mine on it you can rebuild it shortly afterwards, but if there's a town on it, you have to build a cottage on the new (terraformed) terrain and it would take a lot of turns before it would grow back to a town (even with emanzipation). I don't know anything about the abilities of phyton, so i'm just asking if there is no other way.
Anyway, great mod, Mylon, keep up the good work.
The only thing I'd like to see in a future version would be more civics, but i'll leave that up to you. *bows down deeply*