This undated file photo shows steles in Shaolin Temple in Dengfeng City, central China's Henan Province. Three documentary heritage collections submitted by China have been inscribed in the UNESCO Memory of the World Register, the United Nations Educational, Scientific and Cultural Organization announced on Thursday. Among the 74 newly added entries, China contributed two solo submissions - the Bianzhong of Marquis Yi of Zeng and the Steles of Shaolin Temple - as well as a joint submission with Sri Lanka: the Trilingual Inscription. (Xinhua)