The Song Dynasty poet Cheng Hao's poem "Chariots and horses still exist in Zhou's warfare" tells us that Emperor Wu of the Zhou Dynasty used "chariots" and "horses", two relatively new types of arms a

The Song Dynasty poet Cheng Hao's poem "Chariots and horses still exist in Zhou's warfare" tells us that Emperor Wu of the Zhou Dynasty used "chariots" and "horses", two relatively new types of arms at the time, in the war against Shang Zhou, and they played a huge role. So after he conquered the world, when Emperor Wu of Zhou's group of subordinates were playing gambling, they most likely happily added the two types of troops, "cars" and "horses", to praise Emperor Zhou's military power. Invincible. In this way, a new type of gambling appeared, which was different from the old gambling in that it was diverse (the original Bosai had a single unit). Of course Emperor Wu of Zhou felt that this new gambling game was his "patent", in order to show off that he was better than the three kings.