Media workers photograph the Zidanku Silk Manuscripts during a handover ceremony at the Hunan Museum in Changsha, Hunan province, on Monday. The manuscripts, dating back to the Warring States Period (475-221 BC), returned to China 79 years after they were smuggled out of the country, with their return resulting from cooperation between Chinese and the United States cultural institutions. The manuscripts will be permanently archived in the Hunan Museum.