How did the Khmer go from a civilisation which dominated most of mainland Southeast Asia, to a reduced vassal state of either the Siamese or the Vietnamese? Why is Phnom Penh the capital rather than Siem Reap? Why are the Vietnamese the ‘hereditary enemy’ of the Khmer? Time period covered: 1431 - 1800 The next part of the series is hugely important for establishing the context of Cambodia in the 20th century, and therefore the factors leading to the Khmer Rouge revolution. The transition of Angkor to Phnom Penh, as well as the relationship that develops between the Khmer and their neighbours in Siam and Vietnam are important aspects of Cambodian history in its ‘dark ages’ or ‘middle period’. In this episode, Lachlan introduces a brief history of Vietnam, as this eastern neighbour will play a vital role in the story of the region in the 20th century. Visit www.shadowsofutopia.com for more information and sources.