The Bronze Chariots and Horses were unearthed 20 meters west of the Emperor Qinshihuang’s Tomb in 1980，It was reputed to be the Crown of the Bronze Works. After he unified China, Emperor Qinshihuang established a set of ritual system of chariots and horses for imperial procession. These two sets of the bronze chariots and horses served as part of the procession. Both chariots and horses are made of bronze and half the size of the real chariots in the Qin dynasty. They are called the Bronze Chariots and Horses because their primary material is bronze.