Main
- Technology Tree – Iron Working, etc…
- Civics Tree – Mysticism, Feudalism.
- Governments – Autocracy, Theocracy.
Policies (by Era)
- Ancient – Corvee, Urban Planning.
- Classical – Veterancy, Literary Tradition.
- Medieval – Feudal Contract, Meritocracy.
- Renaissance – Wars of Religion, Liberalism.
- Industrial – National Identity, Raj.
- Modern – Propaganda, Five-year Plan.
- Atomic – Cryptography, Rapid Reployment.
- Information – E-com, Collective Activism.
Great People
