Advance
Wampum
A mix of white and purple beads made from different kinds of shells, wampum are used for many purposes, such as recording treaties and oral histories, facilitating diplomacy, and functioning as a system of exchange in trade. Wampum appears wherever our people tread.
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
Definitionin_game/common/advances/region_north_america.txt:318
320potential = {
321exists = capital
322OR = {
323original_capital.region = region:east_coast_region
324original_capital.region = region:canada_region
}
}