Procopius, (l. viii. Gothic. iv. c. 17. Theophanes Byzant. apud Phot. Cod. lxxxiv. p. 38. Zonaras, tom. ii. l. xiv. p. 69. Pagi (tom. ii. p. 602) assigns to the year 552 this memorable importation. Menander (in Excerpt. Legat. p. 107) mentions the admiration of the Sogdoites; and Theophylact Simocatta (l. vii. c. 9) darkly represents the two rival kingdoms in (China) the country of silk.