It is an ancient network of trade routes connecting East Asia and the Mediterranean region.

This religion believe in the doctrines of samsara (the continuous cycle of life, death, and reincarnation) and karma (the universal law of cause and effect).

This religion believe in 4 noble truths: the truth of suffering, the truth of the cause of suffering, the truth of the end of suffering, and the truth of the path that leads to the end of suffering.

This product reached Southeast Asia through trading with which country?