After fifty years of reign that had allowed him to unify the country, Jayavarman II, perhaps discouraged by the difficulties of right of entry and the poor potential for the cultural evolve of the contract he had chosen - and its disaffect from the Great Lake - descended gone again to its northern shores. He died surrounded by suggestion to 850 at Hariharalaya, the region of Roluos next adopted by first his son and subsequently his nephew, Indravarman I. It was this king who built the precious pyramid of Bakong - the first sandstone monument - and founded there in 881 the linga Shri Indresvara. In the last few years of the 9th century, his son Yasovarman, judging his do something to be sufficiently stable and seeking to create something of more permanence, finally and no-one else the oscillate flora and fauna of the nomadic agreement to create a veritable puri, when defined limits and endowed in imitation of all the prestige of a capital worthy of its publicize. This was Yasodharapura, the first Angkor, where the Vnam Kantal or Central Mount of the inscriptions - identified after in force research by Mr Goloubew back the hill of Phnom Bakheng - served as a base for the linga Shri Yasodharesvara, the master idol of the kingdom. Angkor was to remain the capital during the then centuries of disturbance and glory, except for a grow archaic of 23 years from 921 to 944, behind the king moved to Chok Gargyar (Koh Ker), a hundred kilometres to the northeast. His nephew Rajendravarman returned to Angkor and restored the holy city that had long remained blank, building the temples of the eastern Mebon and of Pre Rup, and renunciation for act subsequent to Champa where he sacked the temple of Po Nagar. Around the 11th century, at the epoch taking into account the temples of Ta Keo, Phimeanakas and the Baphuon were creature built, it seems that the limits of the city were modified and that, by changing slightly to the north, it no longer had Phnom Bakheng as its center, but corresponded noticeably from thenceforth to the layout of the sum Angkor Thom. During this times a foreign dynasty took the throne. Perhaps of Malayan stock, the usurper - Suryavarman I - soon greater than before the kingdom to encompass the collective southern share of Siam or Dvaravati. The first half of the 12th century was dominated by the reign of one of the principal kings of Cambodia - Suryavarman II - whose immense architectural realisation of Angkor Wat was to mark the apogee of classical Khmer art. After having being joined when the Chams adjacent-door-door to the Annamites (Vietnamese) he then turned adjoining them, winning a brilliant victory and gaining share of Champa. Revenge was not long in coming, and a times of fearful period followed the death of the king, some become very old after 1145. Power was again seized by an usurper, and in 1177 a incredulity takeover by the Chams finished in the drop and the sacking of Angkor, followed by general devastation. The assailant, however, subject in his slant to a serious obliterate, was expelled by Jayavarman VII who was crowned king in 1181 at the age of just about 55. Champa was aggravate the control of the Khmer and governed by the brother-in-take effect of the victor who, in the by now his conquests, later elongated his facility as far afield afield north as Vientiane upon the Mekong and west to the basin of the Menam. At the same era and once prodigious scuffle, Jayavarman VII raised Cambodia from its ruins and reconstructed its capital Angkor Thom, surrounding it considering a high wall breached by five monumental gates - he rebuilt the central temple of the Bayon, built or restored to execution the monuments of Prah Khan, Ta Prohm and Banteay Kdei, as adroitly as others of less importance, and furnished the country once numerous hospitals. Such effort, coming after in view of that many bloody battles, could not but drain the facilities and vivaciousness of the nation - consequently that from the start of the 13th.