| A | B |
| Rajahs | princes who ruled over large city-states rich in food, jewels, and metals. |
| assassination | murder for a political reason |
| turning point | time of important change |
| missionaries | people who teach about their religion. spreading Buddhism to other parts of Asia |
| arabic numerals | the base ten number system;1 through 9 and zero |
| inoculation | giveing a person a mild form of a disease so that he or she would not get sick with a more serious form |
| cavalry | soldiers who rode horses and camels,to make swift attacks. |
| tribute | yearly payments to the emperor |
| couriers | riders who galloped across the Persian Empire, changing horses at stations along the way. |
| prophet | person who others believe speaks or writes with a divine message. |
| Zoroastrianism | religion that taught the belief in two gods. |