Battle of Anshi (671) — the same event in Samguk Sagi and Zizhi Tongjian

Samguk Sagi: Gao Kan of Tang defeated the Goguryeo refugees at Ansi fortress.; Zizhi Tongjian: In July 671 (Yiwei day), Gao Kan defeats the remnants…

What each source says

Samguk Sagi (History of the Three Kingdoms) · AD 671 · 하이청시

Gao Kan of Tang defeated the Goguryeo refugees at Ansi fortress.

二年辛未歲，秋七月，高侃破餘衆於安市城。
Location: 卷22 寶藏王下 2年

Zizhi Tongjian (Comprehensive Mirror) · AD 671

In July 671 (Yiwei day), Gao Kan defeats the remnants of Goguryeo at Anshi city.

秋，七月，乙未朔，高侃破高麗餘眾於安市城。
Location: 권202 671년 항

Place: 하이청시

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