Progressive law causes your villagers to gather all resources more quickly. However, the additional bureaucracy increases building cost.
—In-game description

Code Napoleon is a technology in Age of Empires III that is unique to the French and can be researched at the Church once the Edict of Nantes Home City Card has been sent. Once researched, it allows Coureurs des Bois (and Settlers/Villagers, if the player can somehow obtain them) to gather resources 10% faster but increases the cost of all buildings by 50%.

Community content is available under CC-BY-SA unless otherwise noted.