Research Technologies Tree

Green: Unlocked buildings by the technology above them.

Blue: Warships unlocked by the technology aboive them. You also need the required Shipyard building level to create advanced units.

Red: Land army. You also need the required Barracks building level in order to create advanced units.

There are 4 research groups:

1. Seafaring : Your scientists are focusing their efforts on seafaring.
2. Economy : Your scientists are currently thinking about new economic concepts and ideas.
3. Science : The attention of your scientists is directed towards theoretical concepts and basic research.
4. Military : Your scientists are focusing their efforts on military technologies.

Buildings

1. Shipyard:
   Military Dry-Dock
2. Warehouse:
   Economy Conservation
3. Taverns:
   Economy Conservation=> Pulley=> Wealth=> Wine Press
   Science Well Digging
4. Museum:
   Science Well Digging=> Paper=> Espionage=> Invention=> Ink=> Cultural Exchange
   Economy Conservation=> Pulley=> Wealth=> Wine Press=> Culinary Specialities
   Military Dry-Dock=> Maps=> Professional Army
   Seafaring Deck Weapons=> Ship Maintenance=> Expansion
5. Palace:
   Seafaring Deck Weapons=> Ship Maintenance=> Expansion
   Military Dry-Dock
   Economy Conservation=> Pulley=> Wealth
6. Embassy:
   Seafaring Deck Weapons=> Ship Maintenance=> Expansion=> Foreign Cultures
   Military Dry-Dock
   Economy Conservation=> Pulley=> Wealth
   Science Well Digging=> Paper=> Espionage
7. Trading post:
   Economy Conservation=> Pulley=> Wealth
8. Workshop:
   Science Well Digging=> Paper=> Espionage=> Invention
   Economy Conservation=> Pulley=> Wealth=> Wine Press
   Military Dry-Dock=> Maps=> Professional Army
9. Hideout:
   Science Well Digging=> Paper=> Espionage
   Economy Conservation=> Pulley=> Wealth