 Rambai muchinyora ndima ino - Nyika yakatangira Umambo hweRoma, Republic yeRoma iyo yakanga yatsiva umambo hweRoma muzana ramakore rechitanhatu BC yakava isina kugadzikana zvikuru mumakwikwi ehondo dzevagari vemo uye kukakavadzana kwezvematongerwe enyika. Pakati pezana ramakore rokutanga BC, Julius Caesar akagadzwa somudzvinyiriri asingagumi uye ipapo akapondwa muna 44 BC. Hondo dzevagari vomunyika yacho nokudzingwa kwaiitwa vanhu mumaguta zvakapedzisira zvaita kuti Octavian, mwanakomana waKesari wokurera, akunde Mark Antony naCleopatra paHondo yeActium muna 31 B.C.E. Gore rakatevera racho Octavian akakunda Ptolemaic Egypt, achigumisa nguva yechiHellenistic yakanga yatanga nokukundaraAlexander Mukuru weMakedhoniya muzana remakore rechina BC. Simba raOctavian ipapo rakava risingapindiki, uye muna 27 BC Seneti yeRoma yakamupa simba guru uye zita idzva rokuti Augustus, zvinobudirira zvichimuita mambo weRoma wokutanga. 