Thonburi Kingdom
Following the Thonburi Kingdom, Rattanakosin was established as the new capital. The monetary system at the beginning of Rattanakosin Era was similar to Ayudhya monetary system consisting of pod duang but it was modified in order to exhibit the development of unique traits attributed to Thai people living in this era. Commemorating pod duang also came into being, which showed there was a shared interest in the importance of the events occurring in their time. Then, King Rama IV who had the royal intention to produce "flat coinage" for use. For the first time this became a period in which Thai money entered the international system.