Dr.Sun-Joo Kim is Harvard-Yenching Professor of Korean History in the Department of East Asian Languages and Civilizations, and is also the director of Korea Institute at Harvard University. The talk focused on the study of the rise of a regional subjectivity in northern part of the Korean peninsula through a person’s life and work to highlight how a literatus named Yi Sihang (1672–1736) from a marginalized region in early modern Korea had become an advocate of regional subjectivity through various social, cultural, and intellectual activities, in particular through his conscientious historical writings.