At the beginning of the year 103 A.D., there were minted coins with the inscription: IMP NERVA TRAIANVS AVG GER DACICVS. ↑ Statius Silvae 5.1; Dio Cassius 68.17.1.; Arrian Parthica frs 37/40 ↑ Yü, Ying-shih. (1986). "Han Foreign Relations," in Denis Twitchett and Michael Loewe (eds), The Cambridge History of China: Volume I: the Ch'in and Han Empires, 221 B.C. – A.D. 220, 377-462, Cambridge: Cambridge University Press, pp. 460–461, ISBN 978-0-521-24327-8.