Advance
The Devshirme of the Steppes
Crimean elites mimicked aspects of Ottoman military-administrative practices, blending Turkic and Muslim systems to manage manpower and military efficiency.
CrimeaCountrypotentialAdvance tree
The game files don’t say where this goes: it has no requires, so the game places it in the 
Absolutism tree itself.
Modifiers
Slaves Output+10%
Manpower+10%
Definitionin_game/common/advances/country_CRI.txt:39
44icon = slave_soldiers