The document provides a summary of Cambodia's history from the ancient Kingdom of Angkor period starting in 802 AD through to modern day. It covers the powerful Angkor Empire, French colonial rule from 1863-1954, US bombing of Cambodia during the Vietnam War, the Khmer Rouge genocide from 1975-1979 which resulted in 1.7 million deaths, the Vietnamese-backed government from 1979-1991, civil war, and Cambodia's transition to democratic elections and challenges today.