Who first proposed the historical periodicity law of China's chaotic control cycle?

1In July, 945, Huang Yanpei visited Yan 'an and talked about "its prosperity was ambiguous, and its death was ambiguous", saying that all dynasties failed to jump out of the cycle rate of rise and fall. Mao Zedong said: "We have found a new path, and we can jump out of this cycle rate. This new road is democracy. Only by letting the people supervise the government will the government dare not relax. Only when everyone is responsible can people not die. " The dialogue between Huang and Mao was later passed down as "Cave Couple".