The Qin slips from Liye are official archives of the government of Qianling County in Dongting Prefecture, ruled by the Qin Dynasty (221-206 BC). In June 2002, some 37,000 slips were unearthed from the ruins of Liye Ancient Town in Longshan County, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province. All bearing characters written by writing brushes, they are mostly government decrees and documents, covering many aspects from household registration to land reclamation and agricultural taxation, including contents that had not been previously recorded in historical documents. A 23cm x 4.5cm wooden slip was found to carry the multiplication table as well as characters on both sides. The earliest calculation table ever found in China, it is of great value to the study of Chinese history of arithmetic. The slip inscription on the Qin Calendar is an official letter from the government of Yangling County to Dongting Prefecture, providing significant information for the study and restoration of the calendar and astronomy during the centuries spanning the Warring States Period (475-221 BC) to the Qin and Han (206 BC-AD 220) dynasties.
China National Philatelic Corporation will issue a FDC and a commemorative cancellation respectively.