OpenCambodia.com

Southeast Asia has been inhabited since the Neolithic era, but the seeds of Angkorian civilization were sown in the 1st century CE. At the turn of the millennium, Southeast Asia was becoming a hub in a vast commercial trading network that stretched from the Mediterranean to China. Indian and Chinese traders began arriving in the region in greater numbers, exposing the indigenous people to their cultures, though it was Indian culture that took hold, perhaps through the efforts of Brahman priests. Indian culture, religion (Hinduism and Buddhism), law, political theory, science and writing spread through the region over a period of several centuries, gradually being adopted by existing states and giving rise to new Indianised princedoms.