and Jin (265-420) dynasties. the Nine Chapters on the Mathematical Art systematically summarizes the mathematical achievements from the pre-Qin period (770-221 B.C.) to the Eastern Han period (25 ...
An old saying goes: Yangzhou-made rouge and Suzhou local flowers are highly famed, but Changzhou-made combs are the best in China. Changzhou-made combs were originated from Jin Dynasty (AD 265-420), ...