Persians, Arabs, Central Asian Muslims and Uyghur Buddhists in the Mongol Yuan dynasty and Mongol empire's armies were sent by the Mongols to fill administrative and military posts in Goryeo era Korea. Central Asian Muslim conquering troops in the Mongol empire who participated in the conquest of Korea were stationed in Korea and Muslims also were appointed as officials in Korea by the Mongols. Korea also received Muslim merchants. In the reign of King Chungnyeol (reigned 1274-1308) a play written for the king's entertainment included a song about a Turkish store selling buns about a Korean woman buying a bun at old Turk's store and being erotically seduced by him. The same play mentions sex with an innkeeper, dragon and monk. Erotic sounding Korean syllables appear in the song. An Arab Muslim immigrant called Samga came to Korea under the Yuan dynasty as an official aide and married a Korean woman, was given the Korean name Jang Sunnyong by the Korean King Chungnyeol and his descendants became the Deoksu Jang clan who number 30,000 today. The Mongol Yuan dynasty was overthrown by the Red Turban rebellion a Central Asian (speculated to be Uyghur) called Seol Son moved to Korea, married a Korean woman and founded the Gyeongju Seol clan. Koreans learned how to distill soju alcohol from Muslims during Goryeo. Chinese and Koreans both referred to Central Asians as Huihui. Korea, like China also adopted Muslim calculations for calendars at that time. Central Asian Muslim presence in Korea during Goryeo and the early Joseon is confirmed by the fact that Joseon King Sejong issued an order concerning "HuiHui" in 1427 that indicated these Central Asian Muslims received stipends from the government during Goryeo and Joseon up to 1427, had their own mosque (ritual hall), their own headgear and clothes as well as culture. They personally addressed the king annually. However the privileges Central Asian Muslims had in Korea due to Mongol rule and the fact that they served as a reminder of Mongol rule of Korea disturbed King Sejong so he ordered that the huihui would be treated the same as all other Koreans and no longer given stupends.