* Military conquest: The Han dynasty was founded in 206 BCE after the collapse of the Qin dynasty. The Han rulers quickly established their power through a series of military campaigns, defeating various other contenders for power and expanding their territory. This military success helped to legitimize the Han dynasty in the eyes of the Chinese people.
* Economic prosperity: The Han dynasty also brought about a period of economic prosperity. The Han rulers encouraged trade and commerce, and the Chinese economy flourished. This economic prosperity helped to improve the lives of many Chinese people and made them more willing to accept Han rule.
* Cultural assimilation: The Han rulers also promoted cultural assimilation between the Han Chinese and the other ethnic groups living in China. They adopted many of the customs and traditions of the non-Han peoples, and they encouraged intermarriage between Han and non-Han Chinese. This cultural assimilation helped to create a sense of unity and belonging among the Chinese people, and it made them more likely to accept Han rule.
* Political stability: The Han dynasty also provided a period of political stability. The Han rulers established a strong centralized government that was able to maintain order and security. This political stability was welcomed by the Chinese people, who had experienced a great deal of instability and chaos during the collapse of the Qin dynasty.
Of course, not all Chinese people willingly accepted Han rule. There were some groups that resisted Han domination, and there were even some rebellions against the Han dynasty. However, the factors listed above helped to ensure that the Han dynasty was able to maintain power for over four centuries.