<Table> <Tr> <Th_colspan="2"> Roman Empire <Ul> <Li> Senatus Populusque Romanus (Latin) </Li> <Li> Imperium Romanum (Latin) </Li> <Li> Βασιλεία Ῥωμαίων (Ancient Greek) Basileía Rhōmaíōn </Li> </Ul> </Th> </Tr> <Tr> <Td_colspan="2"> 27 BC--395 AD 395--476 (Western) 395--1453 (Eastern) </Td> </Tr> <Tr> <Td_colspan="2"> Flag Vexillum </Td> </Tr> <Tr> <Td_colspan="2"> The Roman Empire in AD 117, at its greatest extent at the time of Trajan's death (with its vassals in pink). </Td> </Tr> <Tr> <Th> Status </Th> <Td> Empire </Td> </Tr> <Tr> <Th> Capital </Th> <Td> <Ul> <Li> Rome (27 BC--330 AD) </Li> <Li> Mediolanum (286--402, Western) </Li> <Li> Ravenna (402--476, Western) </Li> <Li> Nicomedia (286--330, Eastern) </Li> <Li> Constantinople (330--1453, Whole) </Li> </Ul> </Td> </Tr> <Tr> <Th> Common languages </Th> <Td> <Ul> <Li> Latin (official until 610) </Li> <Li> Greek (official after 610) </Li> <Li> Regional / local languages </Li> </Ul> </Td> </Tr> <Tr> <Th> Religion </Th> <Td> <Ul> <Li> Imperial cult - driven polytheism (Before AD 380) </Li> <Li> Nicene Christianity (State Church of the Roman Empire) (From AD 380) </Li> </Ul> </Td> </Tr> <Tr> <Th> Government </Th> <Td> Mixed, functionally absolute monarchy </Td> </Tr> <Tr> <Th> Emperor </Th> <Td> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> 27 BC--AD 14 </Th> <Td> Augustus (first) </Td> </Tr> <Tr> <Th> 98--117 </Th> <Td> Trajan </Td> </Tr> <Tr> <Th> 284--305 </Th> <Td> Diocletian </Td> </Tr> <Tr> <Th> 306--337 </Th> <Td> Constantine I </Td> </Tr> <Tr> <Th> 379--395 </Th> <Td> Theodosius I </Td> </Tr> <Tr> <Th> 474--480 </Th> <Td> Julius Nepos </Td> </Tr> <Tr> <Th> 527--565 </Th> <Td> Justinian I </Td> </Tr> <Tr> <Th> 976--1025 </Th> <Td> Basil II </Td> </Tr> <Tr> <Th> 1449--1453 </Th> <Td> Constantine XI </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Legislature </Th> <Td> Senate </Td> </Tr> <Tr> <Th_colspan="2"> Establishment </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Final War of the Roman Republic </Th> <Td> 32--30 BC </Td> </Tr> <Tr> <Th> Empire established </Th> <Td> 30--2 BC </Td> </Tr> <Tr> <Th> Constantinople becomes capital </Th> <Td> 11 May 330 </Td> </Tr> <Tr> <Th> Final East - West divide </Th> <Td> 17 Jan 395 </Td> </Tr> <Tr> <Th> Fall of the Western Roman Empire </Th> <Td> 4 Sep 476 </Td> </Tr> <Tr> <Th> Fourth Crusade </Th> <Td> 12 Apr 1204 </Td> </Tr> <Tr> <Th> Reconquest of Constantinople </Th> <Td> 25 Jul 1261 </Td> </Tr> <Tr> <Th> Fall of Constantinople </Th> <Td> 29 May 1453 </Td> </Tr> <Tr> <Th> Fall of Trebizond </Th> <Td> 15 August 1461 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Area </Th> </Tr> <Tr> <Th> 25 BC </Th> <Td> 2,750,000 km (1,060,000 sq mi) </Td> </Tr> <Tr> <Th> AD 117 </Th> <Td> 5,000,000 km (1,900,000 sq mi) </Td> </Tr> <Tr> <Th> AD 390 </Th> <Td> 4,400,000 km (1,700,000 sq mi) </Td> </Tr> <Tr> <Th_colspan="2"> Population </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> 25 BC </Th> <Td> 56800000 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Currency </Th> <Td> Sestertius, Aureus, Solidus, Nomisma </Td> </Tr> <Tr> <Td_colspan="2"> <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> Western Roman Empire </Td> <Td> </Td> </Tr> <Tr> <Td> Eastern Roman Empire </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Roman Empire <Ul> <Li> Senatus Populusque Romanus (Latin) </Li> <Li> Imperium Romanum (Latin) </Li> <Li> Βασιλεία Ῥωμαίων (Ancient Greek) Basileía Rhōmaíōn </Li> </Ul> </Th> </Tr>

When did the roman empire start and when did it end
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