Sorry if this has been discussed but I haven't been able to find out how nationalities will work in Civ5. I am familiar though on how it works in Civ4 of course.
Maybe its too late for the main game but what I would like to see perhaps even if in a mod would be that nationalities of conquered cities not be changed over time to your own nationality especially when conquering large cities (unlike in Civ4 where over time, the nationality of your cities changes completely over to your empire's nationality).
In fact, I'd like to see "foreign" nationalities in an empire's city actually not decrease but GROW under certain circumstances. Civ4 empires were all far too unrealistically ethnically homogeneous. I'd like to see that change with mechanics for immigration, emigration, and permanent, even growing national minorities and minority rebellions and such!
One way to do this would be that culture, instead of spreading or changing borders, spreads emigration! Think about the US Southwest. It was inside Mexico's borders. However, the US culture was so strong, citizens of American nationality was growing inside Mexican lands of Texas, etc. Then these Americans rebelled against Mexico and took over the Mexican "tiles" in Texas! And as we know afterward these American Texans petitioned to join the main American "Civ".
Well it would be great if Civ5 mechanics (or at least a mod) would simulate something like that! Much better than the Civ4 mechanic where culture simply takes over tiles directly!
Also I think that by having conquered nationalities be permanent, it would really introduce a realistic impediment to empire growth. Unless you are are running the right "civics" for example, if you cobble together a large empire but form it out of conquest of many nationalities, there should be some penalties in terms of your empire's "stabillity" which other nations can exploit such as helping the oppressed minorities of your empire rebel, etc, etc.
Also these permanent ethnic minorities would play a major role in how you have to govern your Empire and also your foreign relations.
Maybe its too late for the main game but what I would like to see perhaps even if in a mod would be that nationalities of conquered cities not be changed over time to your own nationality especially when conquering large cities (unlike in Civ4 where over time, the nationality of your cities changes completely over to your empire's nationality).
In fact, I'd like to see "foreign" nationalities in an empire's city actually not decrease but GROW under certain circumstances. Civ4 empires were all far too unrealistically ethnically homogeneous. I'd like to see that change with mechanics for immigration, emigration, and permanent, even growing national minorities and minority rebellions and such!
One way to do this would be that culture, instead of spreading or changing borders, spreads emigration! Think about the US Southwest. It was inside Mexico's borders. However, the US culture was so strong, citizens of American nationality was growing inside Mexican lands of Texas, etc. Then these Americans rebelled against Mexico and took over the Mexican "tiles" in Texas! And as we know afterward these American Texans petitioned to join the main American "Civ".
Well it would be great if Civ5 mechanics (or at least a mod) would simulate something like that! Much better than the Civ4 mechanic where culture simply takes over tiles directly!
Also I think that by having conquered nationalities be permanent, it would really introduce a realistic impediment to empire growth. Unless you are are running the right "civics" for example, if you cobble together a large empire but form it out of conquest of many nationalities, there should be some penalties in terms of your empire's "stabillity" which other nations can exploit such as helping the oppressed minorities of your empire rebel, etc, etc.
Also these permanent ethnic minorities would play a major role in how you have to govern your Empire and also your foreign relations.