| A | B |
| loyalty | faithful support |
| portion | a part of a whole |
| mercenary | a soldier who is hired to fight for a foreign government |
| Diocletian | a Roman emperor who took power in AD 284 |
| absolute ruler | a ruler who holds complete pwer in a government |
| fortified | steengthened against attack |
| chieftain | a clan or tribal leader |
| aftermath | results of disaster or misfortune |
| barbarian | someone who is considered to be uncivilized and primitive |
| nomad | a member of a group that moves from place to place |
| plunder | to take possession by force |
| delegate | a person chosen to speak and act for another |
| Muslim | a follower of the religion of Islam |
| Byzantine Empire | the eastern Roman Empire which lasted for about 1000 years after the collapse of the west |
| Justinian | a Byzantine emperor |
| Justinian Code | a legal code based on older Roman laws created at the order of Justinian |
| Roman Catholic Church | the Christian church based in Rome and led by the pope |
| Eastern Orthodox Church | the Christian church that developed in the Byzantine Empire |
| mosaic | a picture made from tiny pieces of colored stone or other material |
| tradition | a belief or practice that is passed from one generation to the next |
| dome | a rounded top or roof |
| rubble | rough broken pieces of stone |
| bas-relief | a type of sculpture in which slightly raised figures stand out against a flat background |
| epic | a long poem about a hero's adventures |
| oratory | the art of public speaking |
| vailt | an arch that forms a ceiling or roof |
| aqueduct | a pipe or channel that carries water to a city |