Among the many causes of the fall of the Roman Empire was wars with Persians, which cost the empire much of its strength. But I believe there were other causes that were more important, including civil wars and invasions of migrating Germanic peoples.
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Back in 539BC, the Persians conquered Babylon.
Roman.
The Roman Empire reached its greatest extent under the rule of the emperor Trajan who conquered Dacia (much of present day Romania and part of Moldova) in 106 and took Mesopotamia (Iraq) from the Persians in 116
Roman Empire ruled most of the known land at the time.
The Roman Empire, if you mean "empire" but if you mean "Emperor" it was Caesar who conquered it and became emperor not long thereafter.
The Persians conquered the Babylonian Empire in 539 BCE.
The Medes.
Alexander the Great conquered the Persian Empire and converted it into an empire of his own, not to destroy the Persians but to convert them to Greek culture.
The Babylonian Empire was taken over by the Persians in 539 B.C.
The Roman empire died in 1453 when it was conquered by the Ottoman empire.
The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.The Danube separated Dacia from the Roman empire, that is, until Trajan came along and conquered Dacia.
They absorbed the Medes, their previous rulers.
The Persians under their king Cyrus the Great.
The Babylonian Empire was taken over by the Persians in 539 B.C.
Britain did not "join" the Roman empire. Britain was conquered and then annexed into the empire as a province.
the roman empire was attacked by the usa army with tanks and helicopters
Assyria conquered Israel, then Babylon conquered Assyria and Judah, then Persia conquered Babylon, then the Seuclid Empire conquered Judah, then the Judeans revolted, then Rome conquered Judah, then the Islamic Caliphate conquered the Byzantine Empire (the remains of the Roman Empire). The Ottoman Empire conquered Judah from the Cusaders who had conquered it from its Islamic rulers. Then the British Empire took it from the Ottomans.