From 403 bce onward seven kingdoms other than Zhou constituted the ruling authorities in different parts of China, each of which was led by its own king or duke. In theory, the king of Zhou, whose territory was by now greatly reduced, was recognized as possessing superior powers and moral overlordship over the other kingdoms, but practical administration lay in the hands of the seven kings and their professional advisers or in the hands of well-established families. Then in 221 bce, after a long process of expansion and takeover, a radical change occurred in Chinese politics: the kingdom of Qin succeeded in eliminating the power of its six rivals and established a single rule that was acknowledged in their territories. According to later Chinese historians, this success was achieved and the Qin empire was thereafter maintained by oppressive methods and the rigorous enforcement of a harsh penal code, but this view was probably colored by later political prejudices. Whatever the quality of Qin imperial government, the regime scarcely survived the death of the first emperor in 210 bce. The choice of his successor was subject to manipulation by statesmen, and local rebellions soon developed into large-scale warfare. Gaozu, whose family had not thus far figured in Chinese history, emerged as the victor of two principal contestants for power. Anxious to avoid the reputation of having replaced one oppressive regime by another, he and his advisers endeavored to display their own empire—of Han—as a regime whose political principles were in keeping with a Chinese tradition of liberal and beneficent administration. As yet, however, the concept of a single centralized government that could command universal obedience was still subject to trial. In order to exercise and perpetuate its authority, therefore, Gaozu’s government perforce adopted the organs of government, and possibly many of the methods, of its discredited predecessor.

The authority of the Han emperors had been won in the first instance by force of arms, and both Gaozu and his successors relied on the loyal cooperation of military leaders and on officials who organized the work of civil government. In theory and to a large extent in practice, the emperor remained the single source from whom all powers of government were delegated. It was the Han emperors who appointed men to the senior offices of the central government and in whose name the governors of the commanderies (provinces) collected taxes, recruited men for the labor corps and army, and dispensed justice. And it was the Han emperors who invested some of their kinsmen with powers to rule as kings over certain territories or divested them of such powers in order to consolidate the strength of the central government.

The imperial succession

The succession of emperors was hereditary, but it was complicated to a considerable extent by a system of imperial consorts and the implication of their families in politics. Of the large number of women who were housed in the palace as the emperor’s favorites, one was selected for nomination as the empress; while it was theoretically possible for an emperor to appoint any one of his sons heir apparent, this honor, in practice, usually fell on one of the sons of the empress. Changes could be made in the declared succession, however, by deposing one empress and giving the title to another favorite, and sometimes, when an emperor died without having nominated his heir, it was left to the senior statesmen of the day to arrange for a suitable successor. Whether or not an heir had been named, the succession was often open to question, as pressure could be exerted on an emperor over his choice. Sometimes a young or weak emperor was overawed by the expressed will of his mother or by anxiety to please a newly favored concubine.

Throughout the Xi Han and Dong Han periods, the succession and other important political considerations were affected by the members of the imperial consorts’ families. Often the father or brothers of an empress or concubine were appointed to high office in the central government; alternatively, senior statesmen might be able to curry favor with their emperor or consolidate their position at court by presenting a young female relative for the imperial pleasure. In either situation the succession of emperors might be affected, jealousies would be aroused between the different families concerned, and the actual powers of a newly acceded emperor would be overshadowed by the women in his entourage or their male relatives. Such situations were particularly likely to develop if, as often happened, an emperor was succeeded by an infant son.

The imperial succession was thus frequently bound up with the political machinations of statesmen, particularly as the court grew more sophisticated and statesmen acquired coteries of clients engaged in factional rivalry. On the death of the first emperor, Gaozu (195 bce), the palace came under the domination of his widow. Outliving her son, who had succeeded as emperor under the title of Huidi (reigned 195–188 bce), the empress dowager Gaohou arranged for two infants to succeed consecutively. During that time (188–180 bce) she issued imperial edicts under her own name and by virtue of her own authority as empress dowager. She set a precedent that was to be followed in later dynastic crises—e.g., when the throne was vacant and no heir had been appointed. In such cases, although statesmen or officials would in fact determine how to proceed, their decisions were implemented in the form of edicts promulgated by the senior surviving empress.

Gaohou appointed a number of members of her own family to highly important positions of state and clearly hoped to substitute her own family for the reigning Liu family. But these plans were frustrated on her death (180 bce) by men whose loyalties remained with the founding emperor and his family. Liu Heng, better known as Wendi, reigned from 180 to 157 bce. He soon came to be regarded (with Gaozu and Wudi) as one of three outstanding emperors of the Xi Han. He was credited with the ideal behavior of a reigning monarch according to later Confucian doctrine; i.e., he was supposedly ready to yield place to others, hearken to the advice and remonstrances of his statesmen, and eschew personal extravagance. It can be claimed that his reign saw the peaceful consolidation of imperial power, successful experimentation in operating the organs of government, and the steady growth of China’s material resources.