As none of these states was strong enough to control and subjugate the rest, alliances were formed. The most favoured union was the north-south axis; it struggled against an east-west league. The alliances were not stable but broke up again and again through bribery or intrigue, which produced new combinations. We must confine ourselves to mentioning the most important of the events that took place behind this military façade. Through the continual struggles more and more feudal lords lost their lands; and not only they, but the families of the nobles dependent on them, who had received so-called sub-fiefs. Some of the landless nobles perished; some offered their services to the remaining feudal lords as soldiers or advisers. Thus in this period we meet with a large number of migratory politicians who became competitors of the wandering scholars. Both these groups recommended to their lord ways and means of gaining victory over the other feudal lords, so as to become sole ruler. In order to carry out their plans the advisers claimed the rank of a Minister or Chancellor. Realistic though these advisers and their lords were in their thinking, they did not dare to trample openly on the old tradition. The emperor might in practice be a completely powerless figurehead, but he belonged nevertheless, according to tradition, to a family of divine origin, which had obtained its office not merely by the exercise of force but through a "divine mandate". Accordingly, if one of the feudal lords thought of putting forward a claim to the imperial throne, he felt compelled to demonstrate that his family was just as much of divine origin as the emperor's, and perhaps of remoter origin. In this matter the travelling "scholars" rendered valuable service as manufacturers of genealogical trees. Each of the old noble families already had its family tree, as an indispensable requisite for the sacrifices to ancestors. But in some cases this tree began as a branch of that of the imperial family: this was the case of the feudal lords who were of imperial descent and whose ancestors had been granted fiefs after the conquest of the country. Others, however, had for their first ancestor a local deity long worshipped in the family's home country, such as the ancient agrarian god Huang Ti, or the bovine god Shen Nung. Here the "scholars" stepped in, turning the local deities into human beings and "emperors". This suddenly gave the noble family concerned an imperial origin. Finally, order was brought into this collection of ancient emperors. They were arranged and connected with each other in "dynasties" or in some other "historical" form. Thus at a stroke Huang Ti, who about 450 B.C. had been a local god in the region of southern Shansi, became the forefather of almost all the noble families, including that of the imperial house of the Chou. Needless to say, there would be discrepancies between the family trees constructed by the