Angkor Thom(redirected from Angkor Thum)
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capital of Cambodia from the 12th century to the first half of the 15th century (in the area now known as the province of Siemreap).
Angkor Thorn was built during the reign of King Jay-avarman VII at the end of the 12th century. It was captured by the Siamese in 1431, after which time it lost its significance as the capital city and quickly declined. It is now a historical site, part of the architectural complex of Angkor.