doi:10.7916/d8-cmjy-hb77Chinese History, Episode 3--China, Hundred Schools to OneWeng, Wango H. C.video recordingsmoving imageChina403-221 B.C.Focuses on the period of Chinese history between 475 B.C. and 221 B.C., which was marked by warring between the states and changes in technology and agriculture which led up to the formation of the Chʻin empire.