Oudong was founded by King Srei Soryapor in 1601, after the abandonment of Longvek. Under the reign of King Ang Duong (1841-1850), he constructed canals, terraces, bridges and erected hundreds of pagodas in this region.
From 1618 until 1866 it was formally called Oudong Meanchey, home to a succession of kings deposed from the former capital of Lovek by the invading Thais. In 1866, it was abandoned by King Norodom, taking his royal court along with him to the current capital, Phnom Penh.
During the Cambodian Civil War the town was captured by Khmer Rouge in March 1974, and marched the citizens into the countryside, as well as execution a large number of prisoners. This proved to be a trial-run for the evacuation of Phnom Penh a year later.[4] The Government retook the town in August the same year, but evidence of atrocities was widely discarded by international journalists.
It was extensively damaged by the Khmer Rouge in 1977, along with the other temples, monuments, and religious structures there.
See more photos of Oudong Mountain