Answer:
Dynastic cycle.
Explanation:
Dynastic cycle in China is known to be a pattern to the rising and falling of several dynasties. This forms an important theory in the history of the country in which a dynasty can rise to a certain peak, both politically and culturally and then faces a decline due to corruption. The dynasty at this stage faces further loss of the mandate of heaven and then falls before a new dynasty can replace it, then the cycle repeats.