Muslim invasion followed Heraclius victory over Persians too swiftly to permit imperial restabilization. Succession internal and external crisis created insecurity, contradiction and volatility. Institutions out of date - Heraclius restored parts of old administrative structure that existed before hiatus of Persian occupation · (Thompson Learning 2004)
The Byzantium Civilization started cause of overcrowding in the eight century B.C. that led Greek city-states to send out colonies throughout the Mediterranean basin. In the year of 667 B.C.; Byzas, from the Greek city of Megra, founded Byzantium Civilization at the mouth of the Black Sea. Alexander the Great dominated ...