In the ninth Yanxi year during the reign of Emperor Huan, the king of Da Qin [the Roman Empire, Andun (Marcus Aurelius Antoninus,  161-180), sent envoys from beyond the frontiers through Rinan... During the reign of Emperor He they sent several envoys carrying tribute and offerings. Later, the Western Regions rebelled, and these relations were interrupted. Then, during the second and the fourth Yanxi years in the reign of Emperor Huan [AD 159 and 161, and frequently since, foreigners have arrived [by sea at the frontiers of Rinan in modern central Vietnam to present offerings.