An ancient Persian epic poem , the Kushnameh , contains detailed descriptions of Silla .
The popularity of Iranian designs in Korea can be seen in the widespread use of pearl - studded roundels and symmetrical , zoomorphic patterns .
An ancient Iranian epic poem , the Kushnameh , contains detailed descriptions of Silla .
The popularity of Iranian designs in Korea can be seen in the widespread use of pearl - studded roundels and symmetrical , zoomorphic patterns .