The vicinity of Tongjiang was settled from 698 to 936 by Funie Mohe tribes, who were later submitted to Balhae Kingdom under  King Seon's reign in 737 to 793.
The vicinity of Tongjiang was settled from 698 to 936 by Funie Mohe tribes, who were later submitted to Balhae Kingdom under  King Seon's reign in 737 to 793.