Huns, Mongols, Turks, Scythians and other nomadic steppe tribes are longtime interests of Dan's. In this show he interviews historian Kenneth W. Harl who specializes in the study of those fascinating peoples. 1. Empires of the Steppes: A History of the Nomadic Tribes Who Shaped Civilization by Kenneth W. Harl 2. China Marches West: The Qing Conquest of Central Eurasia by Peter C. Perdue