(E) Succession States of the Toba (A.D. 550-580): Northern Ch'i dynasty,
Northern Chou dynasty
1 Reasons for the splitting of the Toba empire
Events now pursued their logical course. The contrast between the central power, now become entirely Chinese, and the remains of the tribes who were with their herds mainly in Shansi and the Ordos region and were hopelessly impoverished, grew more and more acute. From 530 onward the risings became more and more formidable. A few Toba who still remained with their old tribes placed themselves at the head of the rebels and conquered not only the whole of Shansi but also the capital, where there was a great massacre of Chinese and pro-Chinese Toba. The rebels were driven back; in this a man of the Kao family distinguished himself, and all the Chinese and pro-Chinese gathered round him. The Kao family, which may have been originally a Hsien-pi family, had its estates in eastern China and so was closely associated with the eastern Chinese gentry, who were the actual rulers of the Toba State. In 534 this group took the impotent emperor of their own creation to the city of Yeh in the east, where he reigned de jure for a further sixteen years. Then he was deposed, and Kao Yang made himself the first emperor of the Northern Ch'i dynasty (550-577).
The national Toba group, on the other hand, found another man of the imperial family and established him in the west. After a short time this puppet was removed from the throne and a man of the Yü-wen family made himself emperor, founding the "Northern Chou dynasty" (557-580). The Hsien-pi family of Yü-wen was a branch of the Hsien-pi, but was closely connected with the Huns and probably of Turkish origin. All the still existing remains of Toba tribes who had eluded sinification moved into this western empire.
The splitting of the Toba empire into these two separate realms was the result of the policy embarked on at the foundation of the empire. Once the tribal chieftains and nobles had been separated from their tribes and organized militarily, it was inevitable that the two elements should have different social destinies. The nobles could not hold their own against the Chinese; if they were not actually eliminated in one way or another, they disappeared into Chinese families. The rest, the people of the tribe, became destitute and were driven to revolt. The northern peoples had been unable to perpetuate either their tribal or their military organization, and the Toba had been equally unsuccessful in their attempt to perpetuate the two forms of organization alongside each other.
These social processes are of particular importance because the ethnical disappearance of the northern peoples in China had nothing to do with any racial inferiority or with any particular power of assimilation; it was a natural process resulting from the different economic, social, and cultural organizations of the northern peoples and the Chinese.
2 Appearance of the (Gök) Turks
The Toba had liberated themselves early in the fifth century from the Juan-juan peril. None of the fighting that followed was of any great importance. The Toba resorted to the old means of defence against nomads—they built great walls. Apart from that, after their move southward to Loyang, their new capital, they were no longer greatly interested in their northern territories. When the Toba empire split into the Ch'i and the Northern Chou, the remaining Juan-juan entered into treaties first with one realm and then with the other: each realm wanted to secure the help of the Juan-juan against the other.
Meanwhile there came unexpectedly to the fore in the north a people grouped round a nucleus tribe of Huns, the tribal union of the "T'u-chüeh", that is to say the Gök Turks, who began to pursue a policy of their own under their khan. In 546 they sent a mission to the western empire, then in the making, of the Northern Chou, and created the first bonds with it, following which the Northern Chou became allies of the Turks. The eastern empire, Ch'i, accordingly made terms with the Juan-juan, but in 552 the latter suffered a crushing defeat at the hands of the Turks, their former vassals. The remains of the Juan-juan either fled to the Ch'i state or went reluctantly into the land of the Chou. Soon there was friction between the Juan-juan and the Ch'i, and in 555 the Juan-juan in that state were annihilated. In response to pressure from the Turks, the Juan-juan in the western empire of the Northern Chou were delivered up to them and killed in the same year. The Juan-juan then disappeared from the history of the Far East. They broke up into their several tribes, some of which were admitted into the Turks' tribal league. A few years later the Turks also annihilated the Ephtalites, who had been allied with the Juan-juan; this made the Turks the dominant power in Central Asia. The Ephtalites (Yeh-ta, Haytal) were a mixed group which contained elements of the old Yüeh-chih and spoke an Indo-European language. Some scholars regard them as a branch of the Tocharians of Central Asia. One menace to the northern states of China had disappeared—that of the Juan-juan. Their place was taken by a much more dangerous power, the Turks.
3 The Northern Ch'i dynasty; the Northern Chou dynasty