Cambodian history is marked by the rise and fall of powerful empires, notably the Khmer Empire, which flourished from the 9th to the 15th centuries. This period is renowned for its impressive architectural achievements, including the famous temple complex of Angkor Wat, built in the early 12th century. The empire's influence extended across Southeast Asia, promoting trade, culture, and Hindu and Buddhist religions. In the 20th century, Cambodia faced significant turmoil, particularly during the Khmer Rouge regime from 1975 to 1979, led by Pol Pot. This period resulted in the deaths of approximately 1.7 million people due to starvation, forced labor, and executions. Following the regime's fall, Cambodia began a long process of recovery and rebuilding, striving to restore its cultural heritage and political stability.