Advance
A Permanent Capital
For centuries, our nation has lacked a permanent capital, with the court following the rulers wherever they desired. While this approach has its advantages, in order to effectively govern our vast nation we need to establish a strong central authority in a proper permanent location.
EthiopiaCountrypotentialAdvance tree
The game files don’t say where this goes: it has no requires, so the game places it in the 
Discovery tree itself.
