Periods

• 1) Republic -280 to -27 (1) 

  2) The Julio Claudians -27 to 69 (1) 3) The Flavians 69 to 96 (5) 4) The Antonines 96 to 192 (7) 5) The Severans 193 to 235 (24) 6) The Military Crisis 235 to 284 (129) 7) The Tetrarchy 284 to 307 (7) 8) Christian Empire 307 to 363 (33) 9) The End of the Empire 363 to 476 (13)