| A | B |
| Mohenho-Daro | a large ancient city in the Indus Valley |
| Aryans | an ethnic group who migrated from southern Russia through central Asia and settled in India |
| Sanskrit | a language in India |
| Hinduism | a religion developed in ancient India |
| Vedas | the Books of Knowledge of the ancient Aryans, which were the basis of Hinduism |
| caste | an inherited social class that separates people from other classes by birth, occupation, or wealth |
| Ashoka | the emperor of ancient India from 269-232 BCE |
| Buddhism | a religion based on achieving happiness and peace by living free of desires and pain |
| Siddharta Gautama | a wealthy Indian princewho founded Buddhism in 500 BCE |
| Four Noble Truths | the basic teachings of Buddhism |
| Eightfold Path | in Buddhism, a set of guidelines for how to escape suffering |
| Khmer | an ancient ethnic group in Cambodia |
| Angkor Wat | a Hindu temple in India built by Khmer people |
| reincarnation | the idea that a person's soul is reborn after death |
| karma | that idea that someone's actions determine his or her fate |
| enlightenment | receiving knowledge and inspiration |