Cika wannan jumlar: Najeriya ta zama Tarayyar Jamhuriyar Najeriya a ranar 1 ga Oktoba 1963. Balewa ya ci gaba da zama a matsayin firaministan jamhuriyar har zuwa lokacin da aka yi masa juyin mulki da kisan kai a cikin
1966 Juyin mulkin Najeriya a ranar 15 ga Janairun 1966.