The Polymath of the Han: The Illustrious Life of Cai Yong In the turbulent landscape of the Eastern Han dynasty, few figures cast a shadow as long or as multifaceted as Cai Yong. A true polymath of ancient China, his existence was a seamless tapestry woven from the threads of science, art, and statecraft. Born in the year 133 in Yu County, Cai Yong did not merely inhabit his era; he helped define its intellectual and aesthetic soul. T…