From the 4th to the 14th century AD, My Son Valley was a sacred place for the ruling class of Champa, used for religious ceremonies and as a burial ground for Cham royalty and national heroes. Its origins can be traced back to the ancient cities of Indrapura (Đồng Dương) and Simhapura (Trà Kiệu). However, after the Vietnamese conquered central Vietnam and Champa declined, My Son was abandoned and forgotten. It was reportedly rediscovered in 1898 by a Frenchman named M. C. Paris. At its peak, the complex was closely connected to Indrapura and Simhapura and included about 71 temples along with several stone inscriptions in Sanskrit and Cham.