<Table> <Tr> <Td_colspan="3"> Roman Empire </Td> </Tr> <Tr> <Td_colspan="3"> <Ul> <Li> Imperium Romanum (Latin) </Li> <Li> Senatus populusque Romanus (SPQR) Senate and People of Rome </Li> <Li> Βασιλεία Ῥωμαίων (Ancient Greek) Basileía Rhōmaíōn </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="3"> <Table> <Tr> <Td> </Td> <Td> 27 BC--395 AD 395--480 (Western) 395--1453 (Eastern) 1204--1461 (Trebizond) </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="3"> Aureus of Augustus, the first Roman Emperor . </Td> </Tr> <Tr> <Td_colspan="3"> The Roman Empire in 117 AD, at its greatest extent . </Td> </Tr> <Tr> <Td_colspan="2"> Capital </Td> <Td> <Ul> <Li> 27 BC--293 AD: Rome </Li> <Li> 293--330: Rome (nominal) </Li> <Li> Western Empire only (in consort with Constantinople) (402--480) Ravenna </Li> <Li> Whole Empire (330--1453) Constantinople </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Languages </Td> <Td> <Ul> <Li> Latin (official until 610) </Li> <Li> Greek (official after 610) </Li> <Li> Regional / local languages </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Religion </Td> <Td> <Ul> <Li> Before AD 380: Imperial cult - driven polytheism </Li> <Li> From AD 380: Christianity </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Government </Td> <Td> Mixed, functionally absolute monarchy </Td> </Tr> <Tr> <Td_colspan="2"> Emperor </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 27 BC--AD 14 </Td> <Td> Augustus (first) </Td> </Tr> <Tr> <Td> </Td> <Td> 98--117 </Td> <Td> Trajan </Td> </Tr> <Tr> <Td> </Td> <Td> 284--305 </Td> <Td> Diocletian </Td> </Tr> <Tr> <Td> </Td> <Td> 306--337 </Td> <Td> Constantine I </Td> </Tr> <Tr> <Td> </Td> <Td> 379--395 </Td> <Td> Theodosius I </Td> </Tr> <Tr> <Td> </Td> <Td> 474--480 </Td> <Td> Julius Nepos </Td> </Tr> <Tr> <Td> </Td> <Td> 527--565 </Td> <Td> Justinian I </Td> </Tr> <Tr> <Td> </Td> <Td> 975--1025 </Td> <Td> Basil II </Td> </Tr> <Tr> <Td> </Td> <Td> 1449--1453 </Td> <Td> Constantine XI </Td> </Tr> <Tr> <Td_colspan="2"> Legislature </Td> <Td> Senate </Td> </Tr> <Tr> <Td_colspan="2"> Historical era </Td> <Td> Classical antiquity to Late Middle Ages </Td> </Tr> <Tr> <Td> </Td> <Td> Final War of the Roman Republic </Td> <Td> 32--30 BC </Td> </Tr> <Tr> <Td> </Td> <Td> Empire established </Td> <Td> 30--2 BC </Td> </Tr> <Tr> <Td> </Td> <Td> Empire at its greatest extent </Td> <Td> AD 117 </Td> </Tr> <Tr> <Td> </Td> <Td> Constantinople becomes capital </Td> <Td> 330 </Td> </Tr> <Tr> <Td> </Td> <Td> Final East West divide </Td> <Td> 395 </Td> </Tr> <Tr> <Td> </Td> <Td> Fall of Western Empire </Td> <Td> 476 </Td> </Tr> <Tr> <Td> </Td> <Td> Fourth Crusade </Td> <Td> 1202--1204 </Td> </Tr> <Tr> <Td> </Td> <Td> Fall of Constantinople </Td> <Td> 29 May 1453 </Td> </Tr> <Tr> <Td_colspan="3"> Area </Td> </Tr> <Tr> <Td> </Td> <Td> 25 BC </Td> <Td> 2,750,000 km (1,060,000 sq mi) </Td> </Tr> <Tr> <Td> </Td> <Td> 117 AD </Td> <Td> 5,000,000 km (1,900,000 sq mi) </Td> </Tr> <Tr> <Td> </Td> <Td> 390 AD </Td> <Td> 4,400,000 km (1,700,000 sq mi) </Td> </Tr> <Tr> <Td_colspan="3"> Population </Td> </Tr> <Tr> <Td> </Td> <Td> 25 BC est . </Td> <Td> 56,800,000 </Td> </Tr> <Tr> <Td_colspan="2"> Density </Td> <Td> 21 / km (53 / sq mi) </Td> </Tr> <Tr> <Td_colspan="2"> Currency </Td> <Td> Sestertius, Aureus, Solidus, Nomisma </Td> </Tr> <Tr> <Td_colspan="3"> <Table> <Tr> <Td> Preceded by </Td> <Td> Succeeded by </Td> </Tr> <Tr> <Td> <Table> <Tr> <Td> </Td> <Td> Roman Republic </Td> </Tr> </Table> </Td> <Td> <Table> <Tr> <Td> Ottoman Empire </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> Today part of </Td> <Td> 54 countries (show) <Ul> <Li> Albania </Li> <Li> Algeria </Li> <Li> Andorra </Li> <Li> Armenia </Li> <Li> Austria </Li> <Li> Azerbaijan </Li> <Li> Belgium </Li> <Li> Bosnia and Herzegovina </Li> <Li> Bulgaria </Li> <Li> Croatia </Li> <Li> Cyprus </Li> <Li> Egypt </Li> <Li> France </Li> <Li> Georgia </Li> <Li> Germany </Li> <Li> Gibraltar </Li> <Li> Greece </Li> <Li> Guernsey </Li> <Li> Hungary </Li> <Li> Iran </Li> <Li> Iraq </Li> <Li> Israel </Li> <Li> Italy </Li> <Li> Jersey </Li> <Li> Jordan </Li> <Li> Kosovo </Li> <Li> Kuwait </Li> <Li> Lebanon </Li> <Li> Liechtenstein </Li> <Li> Libya </Li> <Li> Luxembourg </Li> <Li> Macedonia </Li> <Li> Malta </Li> <Li> Moldova </Li> <Li> Monaco </Li> <Li> Montenegro </Li> <Li> Morocco </Li> <Li> Netherlands </Li> <Li> Portugal </Li> <Li> Romania </Li> <Li> Russia </Li> <Li> San Marino </Li> <Li> Saudi Arabia </Li> <Li> Serbia </Li> <Li> Slovakia </Li> <Li> Slovenia </Li> <Li> Spain </Li> <Li> Switzerland </Li> <Li> Syria </Li> <Li> Tunisia </Li> <Li> Turkey </Li> <Li> Ukraine </Li> <Li> United Kingdom </Li> <Li> Vatican City </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="3"> <Ul> <Li> Officially the final emperor of the Western empire . </Li> <Li> Last emperor of the Eastern (Byzantine) empire . </Li> <Li> line - height: 0.95 em </Li> </Ul> </Td> </Tr> </Table> <Tr> <Td_colspan="3"> Roman Empire </Td> </Tr>

Which lasted longest as center of an empire rome or constantinople
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