Unlocks the Statue of Liberty World Wonder.
Tier 1 Edit
Economic Union Edit
Gold Gifts and Trade Missions with City States provide 30% more Influence.
Gain 200 Science (on Quick Speed) whenever a Great Person is born.
Trade Missions (Great Merchants) provide 50% of Gold gained as global Tourism.
Universal Healthcare Edit
+1 Happiness from each National Wonder and Guild.
Covert Action Edit
+2 Spies and doubles both chance of rigging election in City-States and Influence change from doing so.
Volunteer Army Edit
Military Land Units in friendly territory gain +25 additional HP when healing.
Free Trade Edit
+8% Gold in all Cities for each City State trading partner in the Empire.
Civil Society Edit
Specialists consume half the normal amount of Food.
Tier 2 Edit
[Prereq: 2x Tier 1]
Voice of Democracy Edit
Gain 8 Influence with every known City State whenever a Great Person is born.
Free Market Edit
12% of the Empire's Gold income each turn is converted to bonus Science.
Avante Garde Edit
+2 Culture and +2 Tourism from each Great Work and World Wonder.
Universal Suffrage Edit
+20% Great People points in all Cities.
New Deal Edit
Great Person tile improvements each provide +1 Production, +1 Culture, +1 Gold, +1 Science, and +1 Happiness.
Tier 3 Edit
[Prereq: 2x Tier 2]
Specialists provide +1 Production and produce half the normal amount of Unhappiness.
Treaty Organization Edit
City State Friends will no longer declare war on you in support of their Ally.
Space Procurements Edit
Allows the purchase of Spaceship Parts with Gold.