Does "Hanoi" mean north or west of the Yellow River in ancient Chinese?

In ancient times, the north of the Yellow River was Hanoi, and the south and west were outside the river. This is the view of Jin people. In Chu and Han Dynasties, Hanoi County was established, which governed the western part of northern Henan and ruled Huaixian County (now southwest of Wuzhi). The Western Jin Dynasty moved to rule the wild king (now Qinyang). Sui Wang is from Hanoi County. Hanoi County was Huaizhou in Sui and Tang Dynasties. Yuan huaiqing road. Huaiqing Building in Ming and Qing Dynasties. The name of Hanoi County remains unchanged, and it is often used as a place for governance. The government of the Republic of China changed Hanoi county to Qinyang.