United Front wins mandate for a new constitutionMay 27, 1970Labels: United Front, Sirimavo BandaranaikeBritannicaNatl Archives
Constitution Drafting Board appointed in ColomboJul 19, 1970Labels: Constitution Drafting, ColomboNatl Archives
JVP insurrection challenges state authorityApr 5, 1971Labels: JVP, Janatha VimukthiBritannicaJVP 1971
Senate abolished, moving toward unicameral ruleOct 2, 1971Labels: Senate, Unicameral parliamentParliament CeylonBritannica
Draft constitution presented to the Constituent AssemblyDec 29, 1971Labels: Constituent Assembly, Draft ConstitutionMonarchy CeylonNatl Archives
Republican constitution adopted; Ceylon becomes Sri LankaMay 22, 1972Labels: 1972 Constitution, Republic ofNatl ArchivesBritannica1972 Constitution
National State Assembly begins under First RepublicMay 22, 1972Labels: National State, First RepublicNatl AssemblyNatl Archives
Tamil parties unify around the TULF platformJan 1, 1976Labels: TULF, Tamil partiesBritannicaChelvanayakam
Vaddukoddai Resolution calls for Tamil EelamMay 14, 1976Labels: Vaddukoddai Resolution, Tamil EelamVaddukoddaiChelvanayakam
UNP landslide election defeat ends United Front eraJul 21, 1977Labels: UNP, J R1977 ElectionBritannica
Second republican constitution ratified by assembly voteAug 31, 1978Labels: 1978 Constitution, Assembly ratification1978 ConstitutionBritannica
1978 constitution takes effect, closing the First RepublicSep 7, 1978Labels: 1978 Constitution, Second Republic1978 ConstitutionNatl Assembly