《史记·七十列传·太史公自序》
汉王刘邦攻打楚霸王项羽之际，司马卬归降汉王，汉以殷地为河内郡。
汉之伐楚，卬归汉，以其地为河内郡。
When Liu Bang, the king of Han, attacked Xiang Yu, the overlord of Chu, Sima Ang surrendered to the king of Han and the Han took Yindi as the county of Henan.