The four centuries in question may be treated as a single historical period by virtue of dynastic continuity, for, apart from the short interval of 9–25, imperial authority was unquestionably vested in successive members of the same family. The period, however, was one of considerable changes in imperial, political, and social development. Organs of government were established, tried, modified, or replaced, and new social distinctions were brought into being. Chinese prestige among other peoples varied with the political stability and military strength of the Han house, and the extent of territory that was subject to the jurisdiction of Han officials varied with the success of Han arms. At the same time, the example of the palace, the activities of government, and the growing luxuries of city life gave rise to new standards of cultural and technological achievement.
China’s first imperial dynasty, that of Qin, had lasted barely 15 years before its dissolution in the face of rebellion and civil war. By contrast, Han formed the first long-lasting regime that could successfully claim to be the sole authority entitled to wield administrative power. The Han forms of government, however, were derived in the first instance from the Qin dynasty, and these in turn incorporated a number of features of the government that had been practiced by earlier kingdoms. The Han empire left as a heritage a practical example of imperial government and an ideal of dynastic authority to which its successors aspired. But the Han period has been credited with more success than is its due; it has been represented as a period of 400 years of effective dynastic rule, punctuated by a short period in which a pretender to power usurped authority, and it has been assumed that imperial unity and effective administration advanced steadily with each decade. In fact, there were only a few short periods marked by dynastic strength, stable government, and intensive administration. Several reigns were characterized by palace intrigue and corrupt influences at court, and on a number of occasions the future of the dynasty was seriously endangered by outbreaks of violence, seizure of political power, or a crisis in the imperial succession.
Dynastic authority and the succession of emperors
Xi (Western) Han
Since at least as early as the Shang dynasty, the Chinese had been accustomed to acknowledging the temporal and spiritual authority of a single leader and its transmission within a family, at first from brother to brother and later from father to son. Some of the early kings had been military commanders, and they may have organized the corporate work of the community, such as the manufacture of bronze tools and vessels. In addition, they acted as religious leaders, appointing scribes or priests to consult the oracles and thus to assist in making major decisions covering communal activities, such as warfare and hunting expeditions. In succeeding centuries the growing sophistication of Chinese culture was accompanied by demands for more-intensive political organization and for more-regular administration; as kings came to delegate tasks to more officials, so was their own authority enhanced and the obedience that they commanded the more widely acknowledged. Under the kingdoms of Zhou, an association was deliberately fostered between the authority of the king and the dispensation exercised over the universe by heaven, with the result that the kings of Zhou and, later, the emperors of Chinese dynasties were regarded as being the sons of heaven.
Prelude to the Han
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 coloured 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 endeavoured 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 labour 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 favourites, 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 honour, 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 favourite, 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 favoured concubine.
Funerary banner from the tomb of Lady Dai (Xin Zhui), Mawangdui, Hunan province, ink and colours on silk,