Unify Script
Unify Axle Widths
Unify Metrics
Hydraulic Engineering
Develope Imperial Examination
Open to Criticism
Rule with Harsh Officials
Yue Shu Yao Lu
Provincial System
Agricultural Compendium
Paper Currency
Military Reform
Cabinet System
Maritime Bureau
Translator School
Three Grand Battalions
Hydraulic Engineering
Description
Unlocks all water infrastructure districts with Mining. +200% Production towards water infrastructure districts. Each water infrastructure district provides +10% Growth to host city.
