ancient roman empire By adam HORTZ 509 BCE Roman Republic is founded 449 BCE the law of the 12 tables is instituated 218 BCE Hannibal invades italy 73 BCE the sparticus slave uprising 45 BCE julias caeser becomes dictator 44 BCE julias caeser is assassinated 27 BCE augustus becomes the first emporor of rome 38 emporor caligulas reign begins 64 great fire of rome 80 construction of the collosseum is completed 330 capital of the empoireis moved to constantinople 380 empire converts to christianity 410 sack of rome 96,180 age of the five good emporors