Empire of the Romans
Empire in the Eastern Mediterranean (395-1204, 1261-1453)
Location: Balkans, Middle East, North Africa, Caucasus
Capital City: Constantinople
Government type: Absolute Monarchy
Main languages: Greek, Aramaic, Coptic
Main religions: Nicene Christianity
Note: The Byzantine Empire and Eastern Roman Empire are the same country, but I've chosen to count them separately, using the 476 fall of the Western Roman Empire as the dividing line.
Chronology
395: Roman Empire divided into East and West
1204: Constantinople sacked by Crusaders, Empire exiled to Nicaea
1261: Empire retsored with recapture of Constantinople
1374-1395: Ottoman tributary
1424-1453: Ottoman tributary
1453: Ottomans capture Constantinople
Currency
First Solidus (498-720)
1 Solidus = 2 Semissis = 3 Tremissis = 12 Hexagram = 288 Follis = 1,152 Decanummi = 2,304 Pentanummi = 7,200 Nummus
Second Solidus (720-1092)
1 Solidus = 4 Tetartera = 12 Miliaresia = 288 Follis
First Hyperpyron (1092-1300)
1 Hyperpyron = 3 Trachy Nomisma = 48 Trachy Stamena = 864 Tetartera
Second Hyperpyron (1300-1367)
1 Hyperpyron = 12 Basilica = 96 Tournesia = 384 Aspra Trachy = 768 Assaria
Third Hyperpyron (1367-1453)
1 Hyperpyron = 2 Stavrata = 16 Doucatopoula = 192 Tournesia = 576 Follari
Coins from the Byzantine Empire in the collection
•20 Nummus, 554-555 (Emperor Justinian I (527-565), copper, Antioch mint, BCV#231)
•40 Nummus, 582-584 (Emperor Maurice (582-602), copper, Constantinople mint, BCV#492)
•40 Nummus, 630 (Emperor Heraclius (610-641), copper, Constantinople mint, BCV#810)
•1 Follis, Emperor Michael IV (1034-1041) (copper, Constantinople mint, BCV#1825)