Wan's original name was Nanyang, and it was named after the Spring and Autumn Warring States:
Wan is the geomorphological ecological environment characteristic of Nanyang, and Nanyang is the geographical coordinate location of Wan (south of Funiu Mountain, Juyang Land).
The Six Kingdoms of Qin unified Nanyang (南阳郡), the county seat of Wan (also known as Nanyang), and the county city of Wancheng (also known as Nanyang).
Therefore, in later historical records, the name Nanyang and Nanyang are also used alternately by inheritance. The name of Nanyang is guided to Yang County, which can also be used in Zhiwan County, and the name of Nanyang County, Wancheng, is selected according to the different applications described.
The name "Nanyang County" refers not only to Nanyang County in a broad sense, but also to Zhiwan County or Wancheng County, which is usually used by historical recorders. And "Namyang County" can also be habitually nicknamed Wan County by the narrator.
However, the distinction between "Nanyang" in the broad and narrow senses can only be seen or clearly analyzed in the language and geography environment recorded in the historical records.
The Later Han Shu Zhi Junguo IV says: "Nanyang County, Luoyang South Seven Hundred Miles (Han System, about 500 miles today), Thirty-seven Cities." This shows that during the Eastern Han Dynasty, this "Nanyang County" was a special guide to the coordinates of the City of Wancheng, and the second refers to the jurisdiction of 37 cities in the broad sense of nanyang county in the Eastern Han Dynasty, which is a flexible application of two-fingered language and writing.
The Chronicle of the Three Kingdoms records: "Pang Tong, a native of Xiangyang. Yang Yi, a native of Xiangyang. Ma Liang, a native of Yicheng, Xiangyang. Liao Hua, a native of Xiangyang Zhonglu..."
I ask, "Pang Tong, where is Yang Yi from Xiangyang in the Three Kingdoms?"
Another case: "Chen Zhen, a native of Nanyang."
Li Yanzi square, Nanyang people also. ......"
He also asked, "Chen Zhen and Li Yan, where are they from Nanyang in the Three Kingdoms?"
In the first four historical records of the Qin Dynasty, the Two Han Dynasties, and the Three Kingdoms, the historical geography under the "county system" is generally accurately located to the "county", and in the geographical identification of the administrative region where the characters are located, it is also the general positioning coordinate on the "county".
For the use of the names of counties and counties with the same name, one can refer to the three places of counties, counties and cities, and these distinctions should refer to the specific use of the language and writing environment of the recorder.
The case "Pang Tong, Xiangyang people" refers to the people of Xiangyang County, Xiangyang County, Three Kingdoms, or Xiangyang City, Xiangyang County, Three Kingdoms. And Ma Liang is not a xiangyang county or Xiangyang city person, so "Ma Liang, Xiangyang Yicheng people" is clearly recorded, but it is not "Ma Liang, Xiangyang people", which is a method of recording "Xiangyang County".
Of course, "Chen Zhen, Nanyang people" also refers to the Three Kingdoms Nanyang Commandery Zhiwan County (Wanming Nanyang) or the Three Kingdoms Nanyang County City Wancheng people (Wanming Nanyang).
From the above historical materials or records to distinguish the use of:
The case "Han Jin Spring and Autumn" said: The Liang family is in Deng County, Nanyang, twenty miles west of Xiangyang City, and the number is Longzhong. The Liang family "Nanyang Deng County", jing determined to be located in the "Number Longzhong".
In 227 AD, Zhuge Liang, under the territorial division of the Three Kingdoms that identified "today's lower three points", agreed with the geographical coordinate confirmation of "ploughing in Nanyang", and this "Nanyang" was of course determined in the historical geographical identification of "county", that is, the Nanyang of the Three Kingdoms referring to the Three Kingdoms Nanyang County Zhiwan County (also known as Nanyang), rather than the broader geographical scope of nanyang county of the Eastern Han Dynasty or Nanyang County of the Three Kingdoms.
During the Three Kingdoms period, there was no administrative division of "Nanyang Deng County", only Yiyang County Deng County or Xiangyang County Dengcheng County, but if the coordinates of Zhuge Liang's cultivation of the ridge were not the Three Kingdoms Nanyang County Zhiwan County, Zhuge Liang would naturally state the geographical coordinates such as "Ploughing in Nanyang Ye County" or "Ploughing in Deng County".
From Zhuge Liang's own testimony of the "three divisions of the three kingdoms today" and the identification of the status quo of its county division, zhuge Liang himself confirmed that "ploughing in Nanyang" and "being trapped in Nanyang" to argue that this Nanyang naturally refers to the Three Kingdoms Nanyang County Zhiwan County or Wancheng (Wan also known as Nanyang).
Therefore, the "cultivation in Nanyang" refers to nanyang county in the Eastern Han Dynasty or Nanyang county in the Three Kingdoms, which is a wrong geographical determination of administrative regions, and it is also a wrong interpretation that contradicts the identification of historical records and parties.
References:
Why is Wan named Nanyang? Why is Nanyang inseparable from Wan?
First, the source of history
[Shen Guo was destroyed, called Wan.] Chu gai Shenyi named Wanyi, because of its location south of The Funiu Mountain , Nanyang - Today's Headlines]
https://m.toutiao.com/is/dnHeDo6/
Second, the historical process
[Wanming Nanyang, which began in the Spring and Autumn Warring States; Nanyang Mingwan, since ancient times to the present, two names in this place are also - today's headlines]
https://m.toutiao.com/is/dnHehKx/
Third, the flexible use of names is recorded in historical records
1. 【Today's Headlines】
https://m.toutiao.com/is/dnx9AQd/
2. 【Today's Headlines】
https://m.toutiao.com/is/dnx5sw7/
