Age of Reason is an advance in Civilization: Call to Power. It renders the Labyrinth, the Philosopher's Stone, the Ramayana, and Stonehenge obsolete. This page is as basic as the Warrior! You can help the Civilization Wiki by upgrading it. Retrieved from "https://civilization.fandom.com/wiki/Age_of_Reason_(CTP1)?oldid=174593" Categories: Article stubs Advances (CTP1) Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.