| A | B |
| 180 CE | death of Marcus Ausrelius and the end of the Pax Romana |
| inflation | a rise in proces corresponding to a decrease in the value of money |
| Diocletion | emperor - divided the empire into two administrative units |
| Constantine | moved the capital of the eastern empire to Byzantium |
| Constantinople | the name given to Byzantium by Constantine |
| Theodosius | declared in his will that the eastern and western empires should be separated |
| Visigoths | rebelled against Roman rule and killed the Eastern emperor |
| Alaric | visigoth cheif who captured and sacked Rome |
| Attila | leader of the Huns, who invaded the eastern empire |