There is no further Chinese reference to the Kushans after this embassy, presumably because their territory was conquered shortly afterward by the Sasanian dynasty of Persia, an event that went unnoticed in Chinese sources (Brough; Pulleyblank, 1969).
At the state level Chinese contacts with western countries in the next three and a half centuries were sporadic.
505-15), remain unsubstantiated by firm evidence, however.
It has long been recognized that the Yüeh-chih must correspond, wholly or in part, to the Tochari, Asii (or Asiani), and Sacaraucae, who, according to Strabo (11.8.2), overthrew the Greek kingdom of Bactria, thus providing the earliest synchronism between Chinese and western historical records.
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