| A | B |
| anttomy | the study of body structure |
| Hagia Sophia | the religious center of the Byzantine Empire |
| Western Roman Empire | fell in A.D. 476 to a Germanic general named Odoacer |
| vault | a curved ceiling made by building arches against one another |
| Visigoths | a Germanic tribe that rebelled against Rome in A.D. 378 |
| inflation | rapidly increasing prices caused by a decline in the value of money |
| Justinian Code | a very influential legal code of the Byzantine Empire |
| Germanic tribes | Ostrogoths, Visigoths, Franks, Vandals, Angles, Saxons |
| Pantheon | temple built to honor Rome's gods |
| Eastern Roman Empire | thrived and became the Byzantine Empire |
| Constantine | moved the capital from Rome to Constantinople |
| Colosseum | arena that could hold 60,000 people |
| Justinian | a strong emperor of the Byzantine Empire |
| Christianity | became the official religion of Rome |
| Pax Romana | 200 years of peace that began with the rule of Augustus |
| Byzantine Empire | included Greeks, Egyptians, Syrians, Arabs, Jews, Slaves, and others |
| mosaics | pictures made from small pieces of colored glass or stone |
| Latin | became the basis of many modern European languages |
| Hadrian | a "good emperor" |
| regent | a person who stands in for a young or sick ruler |