A total of 107 national treasures unearthed from three nobilities tombs reflecting culture of Khitan dating back to Liao Dynasty are on display at Yangzhou Museum in east China's Jiangsu province on Jan. 25, 2016. The Khitan people were a nomadic people originally from Mongolia and Manchuria (or northeast China) from the 4th century who spoke a language distantly related to the Mongolic languages. (CNS/Cui Jiaming)