It is a fact that in the period of the Ayutthaya Kingdom, i.e. the early 17th century, Persian people migrated to Thailand. They were mainly traders and merchants. These people of Persian decent were referred to as ‘Khaek Ma-ngon’ (แขกมะหง่น) or ‘Shia Muslim’ which is ‘Khaek Chaosen’ (แขกเจ ้าเซน) in Thai. Over the centuries, most of the Khaek Ma-ngon converted to Buddhism and were integrated into Thailand’s society.