This first mention of the name Bod, the usual name for Tibet in the later Tibetan historical sources, is significant in that it is used to refer to a conquered region. In other words, the ancient name Bod originally referred only to a part of the Tibetan Plateau, a part which, together with Rtsaṅ (Tsang, in Tibetan now spelled Gtsaṅ), has come to be called Dbus-gtsaṅ (Central Tibet).