The scion of a Central Asia's nomadic tribe, (called Yueh-chi), Kusanas descended upon the plains of northern India--sometime around the first century after Christ. And gradually built a great, vastly extensive empire in the Yamuno-Gangetic region. But owing to a marked deficiency of indigenous literary sources, Kusana history has continued to be the sport of conjecture. Or, for the last 200 years or so, an area of chroniclers' debate, involving scholars: both ...