Revised imperial constitution proclaimedNov 4, 1955Labels: Haile Selassie, 1955 Constitution, Ethiopian Empire1955 ConstitutionSolomon Negash
Bicameral Parliament defined under revised constitutionNov 4, 1955Labels: Imperial Parliament, Chamber of, SenateForeign Policy1955 Constitution
Penal Code issued as part of legal modernizationJan 1, 1957Labels: Penal Code, Proclamation No, Ethiopian judiciaryBerkeley Law
First elections held for Chamber of DeputiesSep 1, 1957Labels: Chamber of, 1957 Elections, Independents1957 Election1955 Constitution
Imperial Guard coup attempt challenges the regimeDec 13, 1960Labels: Imperial Guard, Crown Prince, 1960 Coup1960 CoupHaile Selassie
Africa Hall inaugurated in Addis AbabaJan 1, 1961Labels: Africa Hall, Addis Ababa, Haile SelassieUNECA
Second chamber election held under single-candidate rulesJan 1, 1961Labels: 1961 Elections, Chamber of, Single-candidate1961 Election1957 Election
University College renamed Haile Selassie I UniversityJan 1, 1962Labels: Haile Selassie, University College, Higher educationAddis Ababa UnivHaile Selassie
Federation with Eritrea abolished by voteNov 14, 1962Labels: Eritrea Federation, Parliament vote, Annexation 1962BritannicaLOC Blog
Organization of African Unity founded in Addis AbabaMay 25, 1963Labels: Organization of, Addis Ababa, OAU 1963UNECAOAU
Reform era’s limits become clearer after 1960–1963 shocksJan 1, 1965Labels: Reform Limits, 1960 Coup, Eritrea Annexation1960 CoupBritannica