Where does the Central Plains refer to?

The Central Plains was also called China in ancient times. At first, its cultural significance was greater than its geographical significance. Chinese academies live in Huaxia nationality, while barbarians live outside the Central Plains. Therefore, where the recipients of Chinese civilization live, there is the Central Plains. In the earliest Xia dynasty, Xia's ruling center was in the west of Henan and the south of Shanxi. Some modern archaeologists and historians put forward to call this piece "Xia Plate", and later it was Shang Dynasty. Directly entering this section to rule, with the migration of the capital of Shang Dynasty, a "business plate" was formed, including eastern Henan, northern Henan and western Shandong. In the Zhou Dynasty, the Zhou family conquered Yi Rong in Guanzhong and Longshan and formed the "Zhou Plate". With the demise of the Shang Dynasty, the Xia and Shang plates were all occupied, and the scope of the Zhou plate was continuously expanded through enfeoffment. Therefore, at the end of the Spring and Autumn Period, the middle and lower reaches of the Yellow River were regarded as the Central Plains.