[Why] In the early Zhou the realm was vast, local tribes were complex, and King Wu's early death left the regime under severe internal and external duress. The court urgently needed a systematic regime to stabilize society. [What] The Duke of Zhou, as regent in crisis, first put down the Three Guards Rebellion and then comprehensively rolled out the patrilineal enfeoffment system. He codified the Rites of Zhou and the corresponding music system to regulate class and ritual order. [Who] The Duke of Zhou is the first great political designer in Chinese history with profound institutional foresight. His selfless regency for the young King Cheng became the moral exemplar revered by later Confucians. [How] The codification constructed China's early nested clan-political network and secured long-term stability for the state. It departed decisively from Shang shamanic mystery and steered the polity toward humanistic moral governance.
Why
The historic event of Duke of Zhou Codifying Rites represents a key developmental peak of the Huaxia dynastic system. Creating the foundational sociopolitical network of ancient China. By establishing this moral or administrative benchmark, it continues to shape the structural and philosophical fabric of ancient Chinese statecraft.