Small villages were clustered around regional centers, which in turn sent their goods to large cities like Angkor in return for other goods, such as pottery and foreign trade items.
Other sources of protein included pigs, cattle, and poultry, which were kept under the farmers' houses, elevated on stilts to protect them from flooding.
The Khmer empire had close cultural, political, and economic trade relationships with Java and Srivijaya, which are in modern-day Indonesia and Malaysia.
The people from Khmer were great builders, having built nearly onethousand temples all over SoutheastAsia and being famous for hydraulic infrastructures like AngkorWat.
Notable leaders in Khmer civilization include Suryavarman II, who built the AngkorWat, and Jayavarman VII, a Buddhist leader who changed the capital from Angkor to Angkor Thom and expelled the Chams who took Angkor, restoring the realm from anarchy, and then invaded Champa, a kingdom from Chams.
Sugar palm trees, fruit trees, and vegetables were grown in the orchards by the villages, providing other sources of agricultural products such as palm sugar, palm wine, coconut, various tropical fruits, and vegetables in Khmer civilization.