Where is Gannan Road from Wu Zetian to now?

There was no such place as Gannan Road in the Wu Zetian period. During the Tang and Song Dynasties, Emperor Taizong Zhenguan ordered the provinces and counties to merge, and on the other hand, according to the situation of mountains and rivers, he divided the whole country into ten roads: Guannei, Henan, Hedong, Hebei, Shannan, Longyou, Huainan, Jiangnan, Jiannan and Lingnan.

Gannan Road is a place mentioned in the TV series De Renjie, but it didn't exist in the Tang Dynasty.

Tao is a local administrative or supervisory department in the history of China. It was first established in the Western Han Dynasty and developed in the Three Kingdoms, the Jin Dynasty and the Southern and Northern Dynasties. Tang and Song dynasties continued to develop and improve, and Ming and Qing dynasties tended to improve. Used in the Republic of China, stopped using after the founding of New China. It should be noted that Tao in different periods has different properties and administrative units.

Extended data:

Tao, as an administrative division, originated in China. "Tao" began to appear in the Han Dynasty. At first, it was at the same level as the county seat, and it was specially used in remote areas where ethnic minorities lived together. The geographical interpretation of Hanshu is "there are barbarians who say Tao" or "the monarch says Tao".

This form and evolution process is similar to that of France in the 20th century. At first, France divided more than 80 provinces into 10 "big regions" according to historical and geographical origins, and then the big regions gradually evolved into the superior units of the provinces.

In the early Tang dynasty, the world was divided into ten roads, which was just a kind of supervision area above the county level. Later, it increased to as many as 23 roads (Jing Yun and Tang Ruizong period). However, after the local real power was mastered by our time-saving system, "Tao" gradually evolved into the title of time-saving jurisdiction, which was different from the early Tang Dynasty and the prosperous Tang Dynasty.

It was not until the twenty-first year of Xuanzong Kaiyuan (733) that the ten roads were officially divided into fifteen roads. That is, Gyeonggi Road is separated from Guannei Road, Duji Road is separated from Henan Road, Shannan Road is divided into East-West Road, and Jiangnan Road is divided into East, West and Central Guizhou. The rest of Hebei, Hedong, Huainan, Jiannan, Longyou and Lingnan remain the same.

Baidu encyclopedia-Dao