Ancient Roman Time Line By NLDAD07 509 BCE The Roman Republic is Founded 449 BCE The law of the 12 Tables is instituted 218 BCE Hannibal invades Italy 73 BCE The Spartacus slave uprising. 44 BCE Julia Ceaser is assassinated 38 BCE Emperor Caligula''s reign begins 27 Augustus becomes the first emperor of Rome 64 Great fire of Rome 80 Construction of the Colosseum is completed Period: 96 to 180 Age of the five Good Emperors 165 Antonine Plague 330 Capital of the Empire is moved to Constantinople 380 Empire converts to christianity 410 Sack of Rome