A world empire, or universal empire, is an imperialist state which claims or aspires to be a universal monarchy and claims the right to world domination.
Five world empires of antiquity
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First empire Assyrian Empire 745–612 BC |
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Second empire Median Empire 612–549 BC |
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Third empire Persian Empire 549–330 BC |
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Fourth empire Macedonian Empire 330–63 BC |
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Fifth empire Roman Empire 63 BC – AD 476 |