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Jayavarman II unifies smaller states to create 1 large empire.
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Cham kingdom invades much of Khmer empires eastern territory.
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Jayavarnam VII defeats the Chams and expands the Empire.
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Rule of jayavarman VIII, He renounces buddhism and orders that buddhism temples and images be destroyed and hinduism becomes the main religion
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Buddhism grows in importance and again becomes the main religion of the Khmer kings.
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Thai army attacks Angkor.
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Khmers abandon Angkor over subsequent centuries, the jungle grows over and around Angkor and it's location is forgotten.
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Siamese (Thai) king attacks and defeats Khmer king.
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Viatnamese armies reapeatedly attacks Khmer forces. In the Meekong river, Delta and defeats the Khmer and approximate modern borders of Cambodia.
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Khmer empire expands and angkor wat is built, Buddhism becomes important.