Have a full granary for each type of food.
Have the highest happiness level (100) for 3 minutes with at least 500 population.
Construct the monument.
Reach 2000 population.
Have 1000 tiles with stone or better roads
Have 3 taverns serve all the beers at the same time
Establish a game warden for every species of wild animal while not hunting at these habitats.
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