On what basis were the Khmer people able to coalesce into a single large kingdom?

1. Economic Power: The Khmer were skilled in agriculture, particularly in the cultivation of rice, and had developed sophisticated hydraulic systems for irrigation, allowing them to produce a surplus of food. This economic strength formed the foundation for the growth and support of their kingdom.

2. Political Leadership: The Khmer had a strong centralized political system with a powerful monarchy. The rulers of the Khmer Empire, known as the "Devarajas" (god-kings), were considered divine and held both political and religious authority. They were able to effectively consolidate their power and control over various regional polities.

3. Religious Influence: Hinduism, and later Mahayana Buddhism, played crucial roles in unifying the Khmer people. The kings were considered the incarnations of gods and were widely respected by the population. Religious beliefs and rituals helped foster a sense of common identity and cultural cohesion among the diverse ethnic groups within the kingdom.

4. Cultural Expansion: The Khmer culture experienced a period of significant expansion and influence, particularly through their architectural and artistic achievements. Building grand temples and religious monuments, such as Angkor Wat, was a powerful symbol of Khmer cultural pride and unity. The spread of Khmer cultural and religious practices further contributed to the kingdom's cohesion.

5. Strategic Alliances: The Khmer strategically formed alliances with neighboring kingdoms and polities, expanding their territory and gaining control of important trade routes and resources. Diplomatic marriages and political negotiations played a crucial role in securing the kingdom's borders and maintaining regional stability.

6. Effective Administration: The Khmer Empire had an efficient administrative system to govern its vast territory. They established provincial and regional centers with bureaucrats, officials, and military garrisons to maintain order and facilitate the flow of resources and information throughout the kingdom.

By leveraging their economic strength, political authority, religious beliefs, cultural influence, strategic alliances, and efficient administration, the Khmer people were able to overcome historical divisions and coalesce into a large and powerful kingdom that dominated the region for several centuries.