Indigenous Ideas

• Bountiful Land
  • +0.015 tribal_development_growth
  • -5% Development cost
• Irregular Warfare
  • +1 Attrition for enemies
• The Great Law
  • +0.25 monthly_reform_progress_modifier
• Braves
  • 10% Morale of armies
• Controlled Burns
  • 15% National manpower modifier
• Trade with Foreigners
  • -10% Idea cost
• Treaties Kept
  • -20% Province war score cost
• bonus
  • +0.25 Institution spread