complications in the extreme East, as in the Oceanic world, will still be found in the now-demonstrated presence of a Caucasic element antecedent to the Mongol in those regions. When the Hiung-nu[655] power was weakened by their westerly migrations to Sungaria and south-west Siberia (Upper Irtysh and Lake Balkash depression), and broken into two sections during their wars with the two Han dynasties (201 B.C.-220 A.D.), the Korean Sien-pi became the dominant nation north of the Great Wall. After destroying the last vestiges of the unstable Hiung-nu empire, and driving the Mongolo-Turki hordes still westwards, the Yuan-yuans, most powerful of all the Sien-pi tribes, remained masters of East Central Asia for about 400 years and then disappeared from history[656]. At least after the sixth century A.D. no further mention is made of the Sien-pi principalities either in Manchuria or in Korea. Here, however, they appear still to form a dominant element in the northern (Mongol) provinces, calling themselves Ghirin (Khirin), from the Khirin (Sungari) valley of the Amur, where they once held sway. Since those days Korea has been alternately a vassal State and a province of the Middle Kingdom, with interludes of Japanese ascendancy, interrupted only by the four centuries of Korai ascendancy (934-1368). This was the most brilliant epoch in the national records, when Korea was rather the ally than the vassal of China, and when trade, industry, and the arts, especially porcelain and bronze work, flourished in the land. But by centuries of subsequent misrule, a people endowed with excellent natural qualities have been reduced to the lowest state of degradation. Before the reforms introduced by the political events of 1895-96, "the country was eaten up by officialism. It is not only that abuses without number prevailed, but the whole system of government was an abuse, a sea of corruption, without a bottom or a shore, an engine of robbery, crushing the life out of all industry[657]." But an improvement was speedily remarked. "The air of the men has undergone a subtle and real change, and the women, though they nominally keep up their habits by seclusion, have lost the hang-dog air which distinguished them at home. The alacrity of movement is a change also, and has replaced the conceited swing of the _yang-ban_ [nobles] and the heartless lounge of the peasant." This improvement was merely temporary. The last years of the century were marked by the waning of Japanese influence, due to Russian intrigues, the restoration of absolute monarchy together with its worst abuses, the abandonment of reforms and a retrograde movement throughout the kingdom. The successes of Japan in 1904-5 resulted in the restoration of her ascendancy, culminating in 1910 in the cession of sovereignty by the emperor of Korea to the emperor of Japan.