The Han house was restored by Liu Xiu, better known as Guangwudi, who reigned from 25 to 57 ce.
Guangwudi established his capital at Luoyang.
The palace once more promoted the cause of scholarship.
Under Mingdi (57–75) and Zhangdi (75–88), China was once more strong enough to adopt a positive foreign policy and set Chinese armies on the march against the Xiongnu.
Chinese prestige reached its zenith around 90 and fell markedly after 125.
Dynastic decline can be dated from the reign of Hedi (88–105/106), when the court once more came under the influence of consorts’ families and eunuchs.
The weakness of the throne can be judged from the fact that, of the 14 emperors of Dong Han, no less than 8 took the throne as boys aged between 100 days and 15 years.
During the last 50 years of Dong Han, northern China became subject to invasion from different sides, and, as was observed by several philosopher-statesmen, the administration became corrupt and ineffective.
Soldiers of fortune and contestants for power were putting troops in the field in their attempts to establish themselves as emperors of a single united China.