PoliticalLegal & treatiesCulturalSpace
- 1948Independence4 February 1948 (from the UK)CIA World Factbook
- 1950Ratified the Genocide ConventionUN Treaty Collection
- 1980Ratified the ICCPR (civil & political rights)UN Treaty Collection
- 1981Ratified CEDAW (women’s rights)UN Treaty Collection
- 1982First UNESCO World Heritage siteSacred City of AnuradhapuraUNESCO World Heritage
- 1991Ratified the Convention on the Rights of the ChildUN Treaty Collection
- 2010Most recent World Heritage inscriptionCentral Highlands of Sri LankaUNESCO World Heritage
- 2016Ratified the Paris Climate AgreementUN Treaty Collection
- 2019First space object launchedRaavana-1GCAT
- 2019Most recent space launchGCAT
- 2024Most recent legislative election2024-11-14IPU Parline