Yidu (1262) — the same event in History of Song and History of Yuan

History of Song: Li Tan turned over Lian, Hai and three cities, betrayed the Yuan and submitted, presenting the counties of Shandong.; History of…

What each source says

History of Song (Songshi), Annals · AD 1262 · 益都府

Li Tan turned over Lian, Hai and three cities, betrayed the Yuan and submitted, presenting the counties of Shandong.

庚戌，李璮以漣、海三城叛大元來歸，獻山東郡縣。
Location: 宋史卷045 {{YL|景定三年}}

History of Yuan (Yuanshi), Annals · AD 1262 · 益都

Li Tan entered Yidu, opened the granary, and treated the officers to a feast (rebellion).

甲午，李璮入益都，發府庫犒其將校。
Location: 元史 卷5 世祖 1262年 2月

Where the sources differ

A and B are two of the sources listed above.

On what pointSource ASource BWhat differs (in Korean)
PlaceHistory of Song (Songshi), AnnalsHistory of Yuan (Yuanshi), Annalsa 연·해 세 성 귀순, b 익도 입성

Place: 青州

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