Joseon · Historical figure
Jeong Yagyong
A wide-ranging scholar and author of Mongmin Simseo.
Key events
He served under Jeongjo and devoted his long exile to scholarship. Mongmin Simseo addresses local administration, Gyeongse Yupyo state institutions, and Heumheum Sinseo criminal justice.
Legacy
Jeong Yagyong proposed reforms across administration, law, and technology. He is remembered as a scholar and reform thinker who brought together major strands of Practical Learning.