AdvanceChanged this version
Surgery
Barber-surgeons are developing more sophisticated techniques for treating injuries and illnesses, and the invention of new surgical instruments makes procedures safer and more effective. As a result, patients are surviving injuries and illnesses that would have been fatal just a few years ago.
Advance tree
The root of a tree in 
Discovery.
- Surgery
Standardized Planks and Bricks then 4 more
Regulate Court Procedures then 60 more
Merchant Trails then 12 more
Modifiers
Definitionin_game/common/advances/0_age_of_discovery.txt:4
6icon = alchemy_advance
11depth = 0