Today, China's earliest known silk texts, the Zidanku Silk Manuscripts of Wuxing Ling (Volume II) and Gongshou Zhan (Volume III), is to be added to the collection of Hunan Museum in Changsha, Central China's Hunan Province. The silk manuscripts are the only ones unearthed so far from China's Warring States Period (475-221 BC). Their return to China comes 79 years after they were illegally taken to the United States in 1946.