The site is believed to date back to the days of the Indian emperor Ashoka, who sent out monks in the 3rd century BC across Asia to spread Buddhism. Centuries later two Kings of the Bagan empire, Narapatisithu and Anawrahta built pagodas at the site. The site contains hundreds of pagodas, collectively known as the Shwe Inn Thein pagodas. Most are from the 17th and 18th century; the earliest one with an inscription dates to the 14th century.