In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Let me give you an example: In one work this author details the life of a tomb-maker who makes extra money by playing the organ at an insane asylum, while another of his novels sees Swartz give a refugee proper documentation only after he tells him his life story in the title Portuguese city. In addition to The Black Obelisk and The Night in Lisbon, he also wrote about Robert and Otto selling their auto workshop and visiting Patrice in a Swiss tuberculosis sanatorium in his novel The Three Comrades, while the turbulent life of the German surgeon Ravic is told in The Arch of Triumph. Another of his novels, The Road Back, is thought to be a sequel to his most famous book, in which the patriotic teacher Kantorek convinces Paul Bumer and his friends to join the Germany Army during World War I. For 10 points, name this German author who wrote All Quiet on the Western Front.
The answer to this example can be: Literature
Here is why: The text is talking about an author and their works, so it belongs to theliterature category.

OK. solve this:
The declaration that formally established this dynasty was made on Kulan Mountain. The first Westerner to discover their ruins was Henri Mahout, though stories of the elegance of its capital had been told much earlier by a visiting Chinese emissary, Zhou Daguan. Among the landmarks in its main capital were the temples Ta Prohm, the Baphuon, and Ta Keo, the first of which was made entirely from sandstone. A complex at Roulos formed the original capital of this empire, which expanded through its conquest of the Mon Kingdom and eventually that of Champa, though it would later fall itself to the Ayutthaya [ay-yut-THIGH-yuh]. Rajendravarman II, Suryavarman II, and the founder Jayavarman II were among the notable rulers of, FTP, what medieval empire of South Asia centered around Angkor in present-day Cambodia
Answer:
History