“Chinese annals mention that in the year 165 B. C, a nomadic Turki tribe in northwestern China and owing allegiance to the Chinese emperors, known as the Yueh-chi, were driven out of their territory by the Hiongnu or Tartars, and migrated westward. This displaced numerous savage tribes in central Asia, who in turn moved westward; and thus the great waves of migration were begun which inundated Europe for centuries, overwhelmed the Roman Empire, and long threatened to extinguish white civilization.” – The Periplus of the Erythaean Sea (Wilfred H. Schoff, trans. & ann.)