0 Bronze 5 techs
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Ironworking 100 ScienceUnits Warrior -
Stonecutting 100 Science -
Trapping 100 ScienceUnits Slinger -
Divination 100 Science -
Administration 100 ScienceProjects Treasury I
1 Iron 7 techs
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Labor Force 160 ScienceRequires
Ironworking EffectCan Add Road -
Husbandry 160 ScienceRequires
Ironworking -
Drama 160 ScienceRequires
Stonecutting EffectStarts the Music -
Polis 160 ScienceRequires
Stonecutting Projects Walls -
Military Drill 160 ScienceRequires
Trapping -
Aristocracy 160 ScienceRequires
Divination -
Rhetoric 160 ScienceRequires
Administration Projects Forum I
2 Classical 7 techs
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Phalanx 250 ScienceRequires
Labor Force Units Spearman -
Spoked Wheel 250 ScienceRequires
Husbandry Units Chariot -
Forestry 250 ScienceRequires
Polis -
Steel 250 ScienceUnits Axeman -
Sovereignty 250 Science -
Metaphysics 250 ScienceRequires
Rhetoric Projects Archive I
3 Imperial 8 techs
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Coinage 400 ScienceRequires
Navigation EffectCan Automate Worker -
Citizenship 400 ScienceRequires
Phalanx -
Portcullis 400 ScienceRequires
Spoked Wheel Projects Moat -
Architecture 400 ScienceRequires
Drama -
Land Consolidation 400 ScienceRequires
Forestry EffectCan remove all VegetationUnits Camel ArcherWar Elephant -
Composite Bow 400 ScienceRequires
Military Drill Units Archer -
Monasticism 400 ScienceRequires
Aristocracy -
Machinery 400 ScienceRequires
Sovereignty Units Onager
4 Royal 8 techs
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Scholarship 700 ScienceRequires
Citizenship -
Stirrups 700 ScienceRequires
Portcullis Units HorsemanHorse Archer -
Vaulting 700 ScienceRequires
Architecture -
Manor 700 ScienceUnits Conscript -
Battle Line 700 ScienceUnits Maceman -
Doctrine 700 ScienceRequires
Monasticism -
Hydraulics 700 ScienceRequires
Machinery Units Ballista -
Cartography 700 ScienceUnits Trireme
5 Steel 5 techs
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Lateen Sail 1100 ScienceUnits Dromon -
Jurisprudence 1100 ScienceRequires
Scholarship -
Martial Code 1100 ScienceProjects Towers -
Bodkin Arrow 1100 ScienceRequires
Manor Units Longbowman -
Windlass 1100 ScienceUnits Crossbowman
6 Heroic 6 techs
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Fiscal Policy 1600 Science -
Barding 1600 ScienceUnits Cataphract -
Cohorts 1600 ScienceUnits Swordsman -
Infantry Square 1600 ScienceRequires
Battle Line Units Pikeman -
Chain Drive 1600 ScienceRequires
Windlass Units Polybolos -
Ballistics 1600 ScienceUnits Mangonel
7 Renaissance 3 techs
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Economic Reform 2000 ScienceRequires
Fiscal Policy Effect+1 Victory Points -
Military Prestige 2000 ScienceEffect+1 Victory Points -
Industrial Progress 2000 ScienceEffect+1 Victory Points