and the forms of international diplomacy developed in this time remained
the standard forms for the next thousand years. The agreement was
renewed at the accession of each new ruler, but was never adhered to
entirely by either side. The needs of the Hsiung-nu increased with the
expansion of their empire and the growing luxury of their court; the
Chinese, on the other hand, wanted to give as little as possible, and no
doubt they did all they could to cheat the Hsiung-nu. Thus, in spite of
the treaties the Hsiung-nu raids went on. With China's progressive
consolidation, the voluntary immigration of Chinese into the Hsiung-nu
empire came to an end, and the Hsiung-nu actually began to kidnap
Chinese subjects. These were the main features of the relations between
Chinese and Hsiung-nu almost until 100 B.C.

In the extreme south, around the present-day Canton, another independent
empire had been formed in the years of transition, under the leadership
of a Chinese. The narrow basis of this realm was no doubt provided by
the trading colonies, but the indigenous population of Yüeh tribes was
insufficiently civilized for the building up of a state that could have
maintained itself against China. Kao Tsu sent a diplomatic mission to
the ruler of this state, and invited him to place himself under Chinese
suzerainty (196 B.C.). The ruler realized that he could offer no serious
resistance, while the existing circumstances guaranteed him virtual
independence and he yielded to Kao Tsu without a struggle.

3 _Brief feudal reaction. Consolidation of the gentry_

Kao Tsu died in 195 B.C. From then to 179 the actual ruler was his
widow, the empress Lü, while children were officially styled emperors.
The empress tried to remove all the representatives of the emperor's
family and to replace them with members of her own family. To secure her