<P> Several signal events from the 4th to 6th centuries mark the period of transition during which the Roman Empire 's Greek East and Latin West divided . Constantine I ( r . 324 -- 337 ) reorganised the empire , made Constantinople the new capital , and legalised Christianity . Under Theodosius I ( r . 379 -- 395 ) , Christianity became the Empire 's official state religion and other religious practices were proscribed . Finally , under the reign of Heraclius ( r . 610 -- 641 ) , the Empire 's military and administration were restructured and adopted Greek for official use instead of Latin . Thus , although the Roman state continued and Roman state traditions were maintained , modern historians distinguish Byzantium from ancient Rome insofar as it was centred on Constantinople , oriented towards Greek rather than Latin culture , and characterised by Orthodox Christianity . </P>
<P> Several signal events from the 4th to 6th centuries mark the period of transition during which the Roman Empire 's Greek East and Latin West divided . Constantine I ( r . 324 -- 337 ) reorganised the empire , made Constantinople the new capital , and legalised Christianity . Under Theodosius I ( r . 379 -- 395 ) , Christianity became the Empire 's official state religion and other religious practices were proscribed . Finally , under the reign of Heraclius ( r . 610 -- 641 ) , the Empire 's military and administration were restructured and adopted Greek for official use instead of Latin . Thus , although the Roman state continued and Roman state traditions were maintained , modern historians distinguish Byzantium from ancient Rome insofar as it was centred on Constantinople , oriented towards Greek rather than Latin culture , and characterised by Orthodox Christianity . </P>
what type of christianity did the byzantine empire or byzantium create
what type of christianity did the byzantine empire or byzantium create
Orthodox Christianity
Orthodox Christianity