 Nyora kupfuurira kweiyi ndima - Kusagadzikana kwezvamatongerwe enyika muRoma kwakawedzera. Mambo Caligula 37-41 akaurayiwa neVarindi vomumuzinda waMambo kuti atsive Claudius 41-53, nepo mutsivi wake Nero 54-68 akapisa Roma. Avhareji yokutonga kubva parufu rwake kusvika kuna Firipi muArabhu 244-249 yaiva makore matanhatu. Kunyange zvakadaro, kuwedzera kwokunze kwakapfuurira, naTrajan 98-117 achipinda muDacia, Parthia neArabia. Muvengi waro mukuru chete aiva Umambo hweParthia. Vanhu vaibva kune dzimwe nyika vakatanga kutambudza miganhu yeumambo hwacho. Mamiriro okunze akaoma eCentral Asia akamanikidza vaHuns kutama, uye muna 370 vakayambuka Don uye nokukurumidza pashure peDanube, vachimanikidza vaGoth kuti vatame, izvo zvakakonzerawo mamwe madzinza echiGermany kuti apfuure miganhu yeRoma. Muna 293, Diocletian 284-305 akagadza vatongi vatatu nokuda kwamativi akasiyana-siyana oumambo. Yakakamurwa zviri pamutemo muna 395 naTheodosius I 379-395 kuva Umambo hweRoma hwokuMadokero nohweByzantium. Muna 406 muganhu wokuchamhembe wokutanga wakaparadzwa navaAlemanni, Vandals navaSuebi vakapinda. Muna 408 vaVisigoth vakapinda muItaly ndokupamba Roma muna 410. Kuparara kwokupedzisira kwoUmambo hwokuMadokero kwakauya muna 476 nokudzingwa kwaRomulus Augustulus 475-476. 