During the Spring and Autumn Period and the Warring States Period, soldiers often used Ge as a weapon. Why didn't they use it later?
Bing is not because it is out of date, but because it has lost its practical function. As a long weapon, Ge can cut off a horse's leg by pulling, but by the end of the Spring and Autumn Period, with the appearance of chariots of the State of Wu, Ge lost its practical significance and gradually disappeared.