1 Reforms and decentralization
The hero of the Turkish siege, Li Shih-min, had allied himself with the Turks in 615-16. There were special reasons for his ability to do this. In his family it had been a regular custom to marry women belonging to Toba families, so that he naturally enjoyed the confidence of the Toba party among the Turks. There are various theories as to the origin of his family, the Li. The family itself claimed to be descended from the ruling family of the Western Liang. It is doubtful whether that family was purely Chinese, and in any case Li Shih-min's descent from it is a matter of doubt. It is possible that his family was a sinified Toba family, or at least came from a Toba region. However this may be, Li Shih-min continued the policy which had been pursued since the beginning of the Sui dynasty by the members of the deposed Toba ruling family of the Northern Chou—the policy of collaboration with the Turks in the effort to remove the Sui.
The nominal leadership in the rising that now began lay in the hands of Li Shih-min's father, Li Yüan; in practice Li Shih-min saw to everything. At the end of 617 he was outside the first capital of the Sui, Ch'ang-an, with a Turkish army that had come to his aid on the strength of the treaty of alliance. After capturing Ch'ang-an he installed a puppet emperor there, a grandson of Yang Ti. In 618 the puppet was dethroned and Li Yüan, the father, was made emperor, in the T'ang dynasty. Internal fighting went on until 623, and only then was the whole empire brought under the rule of the T'ang.
Great reforms then began. A new land law aimed at equalizing ownership, so that as far as possible all peasants should own the same amount of land and the formation of large estates be prevented. The law aimed also at protecting the peasants from the loss of their land. The law was, however, nothing but a modification of the Toba land law (chün-t'ien), and it was hoped that now it would provide a sound and solid economic foundation for the empire. From the first, however, members of the gentry who were connected with the imperial house were given a privileged position; then officials were excluded from the prohibition of leasing, so that there continued to be tenant farmers in addition to the independent peasants. Moreover, the temples enjoyed special treatment, and were also exempted from taxation. All these exceptions brought grist to the mills of the gentry, and so did the failure to carry into effect many of the provisions of the law. Before long a new gentry had been formed, consisting of the old gentry together with those who had directly aided the emperor's ascent to the throne. From the beginning of the eighth century there were repeated complaints that peasants were "disappearing". They were entering the service of the gentry as tenant farmers or farm workers, and owing to the privileged position of the gentry in regard to taxation, the revenue sank in proportion as the number of independent peasants decreased. One of the reasons for the flight of farmers may have been the corvée laws connected with the "equal land" system: small families were much less affected by the corvée obligation than larger families with many sons. It may be, therefore, that large families or at least sons of the sons in large families moved away in order to escape these obligations. In order to prevent irregularities, the T'ang renewed the old "pao-chia" system, as a part of a general reform of the administration in 624. In this system groups of five families were collectively responsible for the payment of taxes, the corvée, for crimes committed by individuals within one group, and for loans from state agencies. Such a system is attested for pre-Christian times already; it was re-activated in the eleventh century and again from time to time, down to the present.
Yet the system of land equalization soon broke down and was abolished officially around A.D. 780. But the classification of citizens into different classes, first legalized under the Toba, was retained and even more refined.
As early as in the Han period there had been a dual administration—the civil and, independent of it, the military administration. One and the same area would belong to a particular administrative prefecture (chün) and at the same time to a particular military prefecture (chou). This dual organization had persisted during the Toba period and, at first, remained unchanged in the beginning of the T'ang.
The backbone of the military power in the seventh century was the militia, some six hundred units of an average of a thousand men, recruited from the general farming population for short-term service: one month in five in the areas close to the capital. These men formed a part of the emperor's guards and were under the command of members of the Shensi gentry. This system which had its direct parallels in the Han time and evolved out of a Toba system, broke down when short offensive wars were no longer fought. Other imperial guards were staffed with young sons of the gentry who were stationed in the most delicate parts of the palaces. The emperor T'ai-tsung had his personal bodyguard, a part of his own army of conquest, consisting of his former bondsmen (pu-ch'ü). The ranks of the Army of conquest were later filled by descendants of the original soldiers and by orphans.
In the provinces, the armies of the military prefectures gradually lost their importance when wars became longer and militiamen proved insufficient. Many of the soldiers here were convicts and exiles. It is interesting to note that the title of the commander of these armies, tu-tu, in the fourth century meant a commander in the church-Taoist organization; it was used by the Toba and from the seventh century on became widely accepted as title among the Uighurs, Tibetans, Sogdians, Turks and Khotanese.
When the prefectural armies and the militia forces weakened, special regional armies were created (from 678 on); this institution had existed among the Toba, but they had greatly reduced these armies after 500. The commanders of these new T'ang armies soon became more important than the civil administrators, because they commanded a number of districts making up a whole province. This assured a better functioning of the military machine, but put the governors-general in a position to pursue a policy of their own, even against the central government. In addition to this, the financial administration of their commands was put under them, whereas in the past it had been in the hands of the civil administration of the various provinces. The civil administration was also reorganized (see the table on pages 83-84).
Towards the end of the T'ang period the state secretariat was set up in two parts: it was in possession of all information about the economic and political affairs of the empire, and it made the actual decisions. Moreover, a number of technical departments had been created—in all, a system that might compare favourably with European systems of the eighteenth century. At the end of the T'ang period there was added to this system a section for economic affairs, working quite independently of it and directly under the emperor; it was staffed entirely with economic or financial experts, while for the staffing of the other departments no special qualification was demanded besides the passing of the state examinations. In addition to these, at the end of the T'ang period a new department was in preparation, a sort of Privy Council, a mainly military organization, probably intended to control the generals (section 3 of the table on page 83), just as the state secretariat controlled the civil officials. The Privy Council became more and more important in the tenth century and especially in the Mongol epoch. Its absence in the early T'ang period gave the military governors much too great freedom, ultimately with baneful results.