Pan-Bi-Yang-Ron Japanese treasury ¡® Pan-Bi-yang-Ron¡¯ copying has been identified for United Shilla¡¯s document. Pan-Bi-Yang-Ron has been possessed at Otani University in Japan. Won Hyo who was a Buddhist monk in Shilla wrote this. There has been found letters and pronunciation of Shilla. Meanwhile Japanese thought Japanese monk wrote this so they decided to national treasury, but it identified shilla¡¯s writing therefore it would be oldest writing in Korea. Signdate : 03-04-2002