Early in the twelfth century, the Kitan monarch paid a visit to the Sungari River, for the purpose of fishing, and was duly received by the chiefs of the Nü-chên tribes in that district. On this occasion the Kitan Emperor, who had taken perhaps more liquor than was good for him, ordered the younger men of the company to get up and dance before him. This command was ignored by the son of one of the chiefs, named Akutêng (sometimes, but wrongly, written _Akuta_), and it was suggested to the Emperor that he should devise means for putting out of the way so uncompromising a spirit. No notice, however, was taken of the affair at the moment; and that night Akutêng, with a band of followers, disappeared from the scene. Making his way eastward, across the Sungari, he started a movement which may be said to have culminated five hundred years later in the conquest of China by the Manchus. In 1114 he began to act on the offensive, and succeeded in inflicting a severe defeat on the Kitans. By 1115 he had so far advanced towards the foundation of an independent kingdom that he actually assumed the title of Emperor. Thus was presented the rare spectacle of three contemporary rulers, each of whom claimed a title which, according to the Chinese theory, could only belong to one. The style he chose for his dynasty was Chin (also read _Kin_), which means "gold," and which some say was intended to mark a superiority over Liao (= iron), that of the Kitans, on the ground that gold is not, like iron, a prey to rust. Others, however, trace the origin of the term to the fact that gold was found in the Nü-chên territory. A small point which has given rise to some confusion, may fitly be mentioned here. The tribe of Tartars hitherto spoken of as Nü-chêns, and henceforth known in history as the "Golden Dynasty," in 1035 changed the word _chên_ for _chih_, and were called Nü-chih Tartars. They did this because at that date the word _chên_ was part of the personal name of the reigning Kitan Emperor, and therefore taboo. The necessity for such change would of course cease with their emancipation from Kitan rule, and the old name would be revived; it will accordingly be continued in the following pages.