Goryeosa: Yun Gwan greatly defeats the Jurchen, sets the boundaries, and builds four fortress towns of Ung, Yeong, Bok and Gil (the Nine Fortresses…
Yun Gwan greatly defeats the Jurchen, sets the boundaries, and builds four fortress towns of Ung, Yeong, Bok and Gil (the Nine Fortresses of the Northeast).
丙申，尹瓘擊女眞，大破之，遣諸將定地界，築雄、英、福、吉四州城。
Location: 世家 卷12 睿宗 二年
Yun Gwan divides the boundaries and builds fortresses at Yeongju (950 kan), Ungju (992 kan), Bokju (774 kan) and Gilju (670 kan)
又遣日官崔資顥，相地於蒙羅骨嶺下築城廊九百五十間，號英州，火串山下築九百九十二間，號雄州，吳林金村築七百七十四間，號福州，弓漢伊村築六百七十間，號吉州。
Location: 권7 睿宗文孝大王 二年
A and B are two of the sources listed above.
| On what point | Source A | Source B | What differs (in Korean) |
|---|---|---|---|
| Numbers | Goryeosa (History of Goryeo) | Goryeosa Jeolyo (Essentials of Goryeo History) | a 칸수 기록 없음 / b 영주 950칸·웅주 992칸·복주 774칸·길주 670칸 |
Place: 함흥
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