Book of Han: The Xiongnu invaded the border and killed Ang, Commandant of Beidi; three generals were deployed to Longxi, Beidi and Shangjun; the…
The Xiongnu invaded the border and killed Ang, Commandant of Beidi; three generals were deployed to Longxi, Beidi and Shangjun; the emperor meant to campaign in person but was stopped by the Empress Dowager.
匈奴寇邊，殺北地都尉卬
Location: 漢書卷004 文帝前元十四年冬
In winter the Xiongnu shanyu Laoshang entered Zhaona and Xiaoguan with a hundred and forty thousand horsemen, killed the Northern Commandery's Commandant Yang, plundered many people and livestock, passed through Pengyang and burned the Huizhong palace; the Han set generals and stationed a hundred thousand troops near Chang'an.
冬，匈奴老上單于十四萬騎入朝那、蕭關，殺北地都尉卬，虜人民畜產甚多；遂至彭陽，使奇兵入燒回中宮，候騎至雍甘泉。
Location: 資治通鑑 卷015 (원문 단락 #1116, -166년)
A and B are two of the sources listed above.
| On what point | Source A | Source B | What differs (in Korean) |
|---|---|---|---|
| Year | Book of Han (Hanshu), Imperial Annals | Zizhi Tongjian (Comprehensive Mirror) | a는 -167, b는 -166 |