Floods submerged more than thirty… (611) — the same event in History of the Northern Dynasties and Book of Sui

History of the Northern Dynasties: Floods submerged more than thirty commanderies in Shandong and Henan, and people sold one another as slaves; the…

What each source says

History of the Northern Dynasties (Beishi), Annals · AD 611

Floods submerged more than thirty commanderies in Shandong and Henan, and people sold one another as slaves; the levies for Goguryeo gave rise to bandits.

大水，山東、河南漂沒三十餘郡，民相賣為奴婢
Location: 北史 卷12 大業7年

Book of Sui (Suishu), Imperial Annals · AD 611

Over thirty commanderies of Shandong and Henan were flooded, and the people sold themselves as slaves.

山東、河南漂沒三十餘郡，民相賣為奴婢
Location: 隋書 卷003 帝紀 大業7年7月

Where the sources differ

A and B are two of the sources listed above.

On what pointSource ASource BWhat differs (in Korean)
OutcomeBook of Sui (Suishu), Imperial AnnalsHistory of the Northern Dynasties (Beishi), Annalsb만 고구려 정발과 도적 봉기를 원인으로 적음
Show on the map — open History of the Northern Dynasties (Beishi), Annals