In addition to the goods, your Settlement also requires you to have a certain level of Diplomacy to unlock an advancement. Diplomacy is generated by Diplomacy-Buildings, such as the Runestone (Vikings) and Tōrō (Feudal Japan). If you do not have the diplomacy required, you can use Diamonds to ignore the requirement and unlock it right away. Otherwise, please build more Diplomacy buildings.
Vikings - Small Diplomacy | Feudal Japan - Small Diplomacy |
Ancient Egypt - Small Diplomacy | Aztecs - Small Diplomacy |
Mughal Empire - Small Diplomacy
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Polynesia Diplomacy |
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Vikings - Large Diplomacy |
Feudal Japan - Large Diplomacy | Ancient Egypt - Large Diplomacy | Aztecs - Large Diplomacy | Mughal Empire - Large Diplomacy | Polynesia Diplomacy Large
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