《晋书·志·第四章》
元康五年，惠帝分出敦煌郡的宜禾、伊吾、宜安、深泉、广至等五县，分出酒泉必沙头县，和另立的会稽、新乡，共八个县立为晋昌郡。
元康五年，惠帝分敦煌郡之宜禾、伊吾、宜安、深泉、广至等五县，分酒泉之沙头县，又别立会稽、新乡，凡八县为晋昌郡。
In the fifth year of Yuankan, Emperor Hui separated Yihe, Yiwu, Yian, Shenquan, and Guangzhi from Dunhuang county, Bishatou county from Jiuquan, and Huiji, Xinxiang, which were newly established, and established 8 counties as Jinchang county.