- Roman Kingdom -- 735 B.C. to 509 B.C.
- Roman Republic -- 509 B.C. to 44 B.C.
- Roman Empire -- 44 B.C. to 476 A.D.
- Byzantine Empire -- "Eastern Roman Empire" 330 A.D to 1453 A.D.
- Holy Roman Empire -- ca 900 A.D. to 1806 A.D.
- Epistle to the Romans -- Book of the Bible New Testament
See Rome, Latin, Roman Catholic Church