It is a precious resource encompassing the history, legends, myths, and genres of ancient Mongolian literature from prehistoric periods to the 17th century. Written by Giiushi Luvsandanzan, a 17th-century Mongolian polymath and translator, and his disciples, this treatise is typically called 'Lu Altan Tobchi.' It's generally considered an original copy of the Secret History of the Mongols written in vertical Mongol script, and the work is unique in that it contains 233 out of the 282 paragraphs in the Secret History of the Mongols, not only verbatim but with additional detail in certain parts. It has significant historical information and facts about the history of the Mongolian state from Chinggis Khaan to Ligden Khaan (13th to 17th centuries). Onkhodyn Jamiyan, the first director of the Institute of Sutra and Scripts, found out and brought the original pen copy that was kept by Taiji Damdin of Yonshoobu clan in Bayantiimen khoshuu9 of Khan Khentii Uulyn aimag6 in 1926. Altan Tobchi was inscribed on the list of Mongolia's exceptionally invaluable historical and cultural monuments in 1995 by the Government of Mongolia under Resolution #241. In 2009 and 2011, respectively, it was inscribed on the list of documentary heritage of UNESCO's Asia-Pacific Memory of the World Register and the International Memory of the World Register.