Bailey's timeline By timetoastmrmorris Period: 509 BCE to 27 BCE Years of the Roman Republic 55 BCE Julius Caesar extends Roman conquest into central and Western Europe. 27 BCE Pax Romana begins Pax Romana is a time of Roman peace meaning that it reached its height and never would reach that height again. Went down from there. 200 Peak of Roman territorial expansion and the end of Pax Romana. 220 Invasions by foreign country's begin Period: 235 to 285 Crisis period in Roman political leadership. 410 Rome is sacked by invading Visigoths A Germanic tribe 455 Rome is sacked by Vandals another Germanic tribe 476 Rome falls to Goths yet another Germanic tribe