'Phags-pa script
The British Library manuscript includes two prefaces in Chinese dated 1308, one by Liu Geng 劉更 and one by Zhu Zongwen 朱宗文 (Mongolian name Bayan) of Xin'an 信安 (modern Changshan County in Zhejiang). The prefaces both indicate that this edition of the dictionary was composed by Zhu Zongwen, but that it is a revised edition based on a collation of several editions that were in circulation at the time, including one edition published in Hubei and one edition published in Eastern Zhejiang. The original 'Phags-pa dictionary that is ancestral to the 1308 edition was probably compiled by imperial order soon after the 'Phags-pa script was devised in about 1269, intended for use in teaching the new script to Chinese officials.