Volume II of the History of Civilizations of Central Asia presents an account of various movements of populations and the interrelations of their cultures in this region between 700 B.C. and A.D. 250. This period saw the emergence of several nomadic and sedentary civilizations who lived partly in the steppe zone and partly in the oasis zone. The contrast between them was accentuated by the rise of the Achaemenid Empire. The invasion of Alexander the Great ...