Civilization II · Technologies
Astronomy
Requires Mathematics + Mysticism
The systematic study of the heavens, improving knowledge and navigation.
In the tech tree
- Requires
Mathematics
Mysticism- Leads to
Navigation
Theory of Gravity
About technologies in Civilization II
Research accumulates from trade in your cities — light bulbs in the city view — and each completed advance unlocks units, buildings, governments or wonders while opening the path to further advances. The order you research in is the single biggest strategic decision of the early game.
Strategy — Beeline matters more than breadth: decide early whether you're rushing Monarchy for growth, Literacy for the Great Library, or military techs for an early war.
