This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
King Suryavarman II built Angkor Wat between 1113 and 1150 as a state temple dedicated to Vishnu, raising the largest religious monument the Khmer Empire ever produced and among the largest anywhere built by a Hindu kingdom. The building took the better part of four decades to complete, spanning nearly the whole of Suryavarman II's own reign, and its scale reflected the resources of an empire at its height, put entirely toward a structure meant to house and honour a single Hindu deity.
The temple's construction marks the high point of an establishment that had been building since Funan's own Indianization centuries earlier: Angkor Wat stood as the empire's ceremonial and cosmological centre, raised by a ruling class that had adopted Hindu kingship and cosmology as its own state ideology rather than a foreign import layered over local practice.
What this changed for Hinduism's spread in Cambodia was the conversion of centuries of gradual religious adoption into a single, permanent monument at the very centre of Khmer political life. Angkor Wat represented the furthest point the religion reached in the region under Suryavarman II's own reign, a height it would not hold for long: within decades of the temple's completion, the site itself would be turned toward a different religion entirely.