Roman Empire By Hebabe 400 BCE Rome complete control of central Italy 167 BCE Rome begins conquest in eastern Mediterranean 121 BCE Gracious brother's reform attempts 44 BCE Julius Caesar's Assassination 27 BCE Augustus Caesar;rise of Roman Empire 30 Crucifixion of Jesus 106 Under Trajan,Roman Empire reaches its greatest size 180 Death of Emperor Marcus Aurelius;beginning of decline of Empire 313 Emperor Constantine Converts to Christianity 476 Fall of Rome