Advance
Exploration Ideas
Our naval superiority allows us to project power well past our own horizons, extending a natural claim to distant lands as our own by right of discovery.
Advance tree
The game files don’t say where this goes: it has no requires, so the game places it in the 
Discovery tree itself.
Modifiers
Colonial Range+500
Definitionin_game/common/advances/4_choices_dip.txt:176
178for = dip
184ai_preference_tags = {
exploration
}