九世纪朝鲜藏本《山海图》与古代美洲张敏长期以来，哥伦布到来之前美洲的发现以及美洲古代文明的繁荣与衰落是中外学者极感兴趣的问题。这是因为，这一时期美洲大陆没有出现殖民者的侵略与杀戳，掠夺与破坏，谎言与欺骗……古代美洲文明的起源与传播，其和平与进步的景象... The Nineteenth Century North Korea’s Tibet Autograph Collection and the Ancient Americas Zhang Min The discovery of the Americas before the arrival of Columbus and the prosperity and decline of the ancient civilizations in the Americas have long been a topic of great interest to Chinese and foreign scholars. This is because the colonial invasions and killings, the plunder and destruction, the lies and the deceptions of the colonies did not occur during the period of the Americas ... The origins and spread of the ancient American civilization, its peace and progress ...