Twelve tombs from the end of the Warring States to the Qin dynasty were excavated at Shuihudi, Yunmeng County, Hubei Province, among which more than 1,000 Qin slips were unearthed from the tomb No.11, recording the Qin laws and archives. The calligraphy in the slips is delicate and smooth, written in the seal and official script with informal font and shape.