* Add Milan as 1st city state. Choose box for number of city states.
* City states don't get settlers.
* Added diplomancy relationship. Now increase by gift and decreases every turn.
* Friendly culture city states provides culture bonus.
* 0 city states by default.
* Disable many trade items for city states.
* Fix part 1.
* Fix diplomacy screen and pop-ups.
* City state doesn't build world wonders.
* City states destroy city when conquering.
* Fixed : Trying to move into border of uncountered civs caused crash.
* City states don't exchange tech or declare war on others.
* Fix a very strange problem : you could trade introduction of AI to itself.
* City states automatically get all invented techs.
* Pops defeat msg before AI founds any city.
* Fix conquest victory with city states.
* Fixed : AI city under seige change production every turn.
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