Hou Hanshu (History of the Later Han) recounted that only one Roman convoy set out by emperor Antoninus Pius reached the Chinese capital Luoyang in 166 and was greeted by Emperor Huan.
The western-eastern Han convention is used nowadays to avoid confusion with the Later Han Dynasty[?] of the Period of the Five Dynasties and the Ten Kingdoms though the earlier nomenclature was used in traditional historical texts like Si-ma Guang's Zi Zhi Tung Jian[?].
The beginning of the Han Dynasty can be dated either from 206 BC when the Qin dynasty crumbled or 202 BC when Liu Bang killed Xiang Yu, the leader of a competing rebellion that sought to re-instate the Zhou dynasty aristocracies.
Emperor Wu decided that Taoism is no longer suitable for China, and officially declared China to be a Confucian state; however, alike the emperors before him, he combined Legalist methods with the Confucian ideal.
The Han rulers inheriting the unified territory of the Qin laid the foundations of a social organization and promoted intellectual inquiries that were to serve as casting molds for all future dynasties to come.
EmperorHuandi one of the last Emperors of Han used the power of his eunuchs to conspire to rid his kingdom of the mighty Liang clan.
During the first Han dynasty, the ruler was always seen as the pivot of cosmic harmony, but disillusionment about the weakness of their rulers and the influence of the power hungry court eunuchs led scholars, officials, wealthy landowners and even vassal state clans to conspire against the Han court.