Researchers need to further study the liquor to better understand the brewing technology and wine drinking culture in Xianyang, the ancient capital of the Qin Dynasty.

Also discovered in the tombs was a bronze sword 60-centimeters long. The sword has octahedrons in the middle, which increases the weapon's effectiveness. There are also breaches on the edge of the sword, suggesting it was used in war.

Another important finding is a turtle plastron shell 14-centimeters long. There are a dozen punches inside the shell, and burn marks on its edge. The characters suggest that it was used by a fortune-teller for divination.

Researchers are trying to build up a picture of life in the capital of China's first empire by studying the relics.