An age (known as an era in some similar games) is a period of time in Civilization: Call to Power. There is little practical significance apart from the announcement when a civilization is first to reach a specific age.
There are five ages in the game:
- Ancient Age
- Renaissance Age - Requires Alchemy, Banking, Classical Education, and Engineering.
- Modern Age - Requires Age of Reason, Cannon Making, Medicine, Ocean Faring, and Railroad.
- Genetic Age - Requires Genetics, Robotics, and Space Flight.
- Diamond Age - Requires Arcologies (advance), Neural Interface, and Wormholes.