Various unique jade implements either for ritual use or personal ornaments were produced by local cultures on the vast land of China during the Neolithic period. The most distinguished ones were animal -shaped ornaments of the Hongshan Culture along the Liao River Valley; Bi (disc), Cong, Fu (axe), and Yue (axe) of the Liangzhu Culture around Lake Taihu and jade knives, scepters of the Longshan Culture along the Yellow River Valley.The uniformity of their shapes and the delicacy of their designs represent the climax of prehistoric jade production.