Within Buddhist mythology, Sadashkana (Kharosthi: ð¨®ð¨¿ð¨Âð¨Âð¨ÂâÂÂð¨¯ð¨¡ ', ') according to the gold plate inscription of Senavarman, mentions Sadashkana as the Devaputra (son of god), son of maharaja rayatiraya Kujula Kataphsa (Kujula Kadphises):
He was the son of the founder of the Kushan Empire and his brother was Sadaá¹£kaá¹Âa, their next generation was Kanishka. The Chinese Book of Later Han å¾Âæ¼¢æ¸ chronicles gives an account of the formation of the Kushan Empire based on a report made by the Chinese general Ban Yong to the Chinese Emperor c. 125 AD:
The Kushans were one of five branches of the Yuezhi confederation, a possibly Iranian or Tocharian, Indo-European nomadic people who migrated from Gansu and settled in ancient Bactria. Ban Gu's Book of Han tells us the Kushans (Kuei-shuang) divided up Bactria in 128 BC. Fan Ye's Book of Later Han "relates how the chief of the Kushans, Ch'iu-shiu-ch'ueh (the Kujula Kadphises of coins), founded by means of the submission of the other Yueh-chih clans the Kushan Empire, known to the Greeks and Romans under the name of Empire of the Indo-Scythians."